diff --git a/Cargo.lock b/Cargo.lock
index 3021b2145..09d99832d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -142,9 +142,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.37"
+version = "1.0.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee67c11feeac938fae061b232e38e0b6d94f97a9df10e6271319325ac4c56a86"
+checksum = "afddf7f520a80dbf76e6f50a35bca42a2331ef227a28b3b6dc5c2e2338d114b1"
 
 [[package]]
 name = "arrayref"
@@ -166,9 +166,9 @@ checksum = "71938f30533e4d95a6d17aa530939da3842c2ab6f4f84b9dae68447e4129f74a"
 
 [[package]]
 name = "async-attributes"
-version = "1.1.1"
+version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "efd3d156917d94862e779f356c5acae312b08fd3121e792c857d7928c8088423"
+checksum = "a3203e79f4dd9bdda415ed03cf14dae5a2bf775c683a00f94e9cd1faf0f596e5"
 dependencies = [
  "quote",
  "syn",
@@ -237,7 +237,7 @@ dependencies = [
  "httparse",
  "lazy_static",
  "log",
- "pin-project 1.0.2",
+ "pin-project 1.0.4",
 ]
 
 [[package]]
@@ -365,7 +365,7 @@ dependencies = [
  "memchr",
  "num_cpus",
  "once_cell",
- "pin-project-lite 0.2.0",
+ "pin-project-lite 0.2.4",
  "pin-utils",
  "slab",
  "wasm-bindgen-futures",
@@ -393,7 +393,7 @@ dependencies = [
  "filetime",
  "libc",
  "pin-project 0.4.27",
- "redox_syscall",
+ "redox_syscall 0.1.57",
  "xattr",
 ]
 
@@ -445,9 +445,9 @@ checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
 [[package]]
 name = "backtrace"
-version = "0.3.55"
+version = "0.3.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ef5140344c85b01f9bbb4d4b7288a8aa4b3287ccef913a14bcc78a1063623598"
+checksum = "9d117600f438b1707d4e4ae15d3595657288f8235a0eb593e80ecc98ab34e1bc"
 dependencies = [
  "addr2line",
  "cfg-if 1.0.0",
@@ -618,9 +618,9 @@ checksum = "40e38929add23cdf8a366df9b0e088953150724bcbe5fc330b0d8eb3b328eec8"
 
 [[package]]
 name = "bumpalo"
-version = "3.4.0"
+version = "3.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e8c087f005730276d1096a652e92a8bacee2e2472bcc9715a74d2bec38b5820"
+checksum = "f07aa6688c702439a1be0307b6a94dffe1168569e45b9500c1372bc580740d59"
 
 [[package]]
 name = "byte-pool"
@@ -634,15 +634,15 @@ dependencies = [
 
 [[package]]
 name = "bytemuck"
-version = "1.4.1"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41aa2ec95ca3b5c54cf73c91acf06d24f4495d5f1b1c12506ae3483d646177ac"
+checksum = "5a4bad0c5981acc24bc09e532f35160f952e35422603f0563cd7a73c2c2e65a0"
 
 [[package]]
 name = "byteorder"
-version = "1.3.4"
+version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
+checksum = "ae44d1a3d5a19df61dd0c8beb138458ac2a53a7ac09eba97d55592540004306b"
 
 [[package]]
 name = "cache-padded"
@@ -772,9 +772,9 @@ dependencies = [
 
 [[package]]
 name = "const_fn"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd51eab21ab4fd6a3bf889e2d0958c0a6e3a61ad04260325e919e652a2a62826"
+checksum = "28b9d6de7f49e22cf97ad17fc4036ece69300032f45f78f30b4a4482cdc3f4a6"
 
 [[package]]
 name = "constant_time_eq"
@@ -793,9 +793,9 @@ dependencies = [
  "hkdf",
  "hmac",
  "percent-encoding",
- "rand",
+ "rand 0.7.3",
  "sha2",
- "time 0.2.23",
+ "time 0.2.24",
  "version_check 0.9.2",
 ]
 
@@ -980,9 +980,9 @@ dependencies = [
 
 [[package]]
 name = "ctor"
-version = "0.1.17"
+version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "373c88d9506e2e9230f6107701b7d8425f4cb3f6df108ec3042a26e936666da5"
+checksum = "10bcb9d7dcbf7002aaffbb53eac22906b64cdcc127971dcc387d8eb7c95d5560"
 dependencies = [
  "quote",
  "syn",
@@ -999,13 +999,13 @@ dependencies = [
 
 [[package]]
 name = "curve25519-dalek"
-version = "3.0.0"
+version = "3.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8492de420e9e60bc9a1d66e2dbb91825390b738a388606600663fc529b4b307"
+checksum = "f627126b946c25a4638eec0ea634fc52506dea98db118aae985118ce7c3d723f"
 dependencies = [
  "byteorder",
  "digest",
- "rand_core",
+ "rand_core 0.5.1",
  "subtle",
  "zeroize",
 ]
@@ -1109,7 +1109,7 @@ dependencies = [
  "quick-xml",
  "r2d2",
  "r2d2_sqlite",
- "rand",
+ "rand 0.7.3",
  "regex",
  "rusqlite",
  "rustyline",
@@ -1147,7 +1147,7 @@ dependencies = [
  "human-panic",
  "libc",
  "num-traits",
- "rand",
+ "rand 0.7.3",
  "serde_json",
  "thiserror",
 ]
@@ -1257,7 +1257,7 @@ checksum = "c762bae6dcaf24c4c84667b8579785430908723d5c889f469d76a41d59cc7a9d"
 dependencies = [
  "curve25519-dalek",
  "ed25519",
- "rand",
+ "rand 0.7.3",
  "serde",
  "sha2",
  "zeroize",
@@ -1272,14 +1272,14 @@ checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 [[package]]
 name = "email"
 version = "0.0.21"
-source = "git+https://github.com/deltachat/rust-email#9161f2d45d29ae8f0119fde0facdb1b0d7c6f077"
+source = "git+https://github.com/deltachat/rust-email?branch=master#9161f2d45d29ae8f0119fde0facdb1b0d7c6f077"
 dependencies = [
  "base64 0.11.0",
  "chrono",
  "encoded-words",
  "encoding",
  "lazy_static",
- "rand",
+ "rand 0.7.3",
  "time 0.1.44",
  "version_check 0.9.2",
 ]
@@ -1287,7 +1287,7 @@ dependencies = [
 [[package]]
 name = "encoded-words"
 version = "0.1.0"
-source = "git+https://github.com/async-email/encoded-words#e878b6929ef6aee2909c4c096a0e143a38b8ff8d"
+source = "git+https://github.com/async-email/encoded-words?branch=master#e878b6929ef6aee2909c4c096a0e143a38b8ff8d"
 dependencies = [
  "base64 0.12.3",
  "charset",
@@ -1449,13 +1449,13 @@ dependencies = [
 
 [[package]]
 name = "filetime"
-version = "0.2.13"
+version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c122a393ea57648015bf06fbd3d372378992e86b9ff5a7a497b076a28c79efe"
+checksum = "1d34cfa13a63ae058bfa601fe9e313bbdb3746427c1459185464ce0fcf62e1e8"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.2.4",
  "winapi",
 ]
 
@@ -1504,9 +1504,9 @@ dependencies = [
 
 [[package]]
 name = "futures"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b3b0c040a1fe6529d30b3c5944b280c7f0dcb2930d2c3062bca967b602583d0"
+checksum = "da9052a1a50244d8d5aa9bf55cbc2fb6f357c86cc52e46c62ed390a7180cf150"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -1519,9 +1519,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b7109687aa4e177ef6fe84553af6280ef2778bdb7783ba44c9dc3399110fe64"
+checksum = "f2d31b7ec7efab6eefc7c57233bb10b847986139d88cc2f5a02a1ae6871a1846"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -1529,15 +1529,15 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "847ce131b72ffb13b6109a221da9ad97a64cbe48feb1028356b836b47b8f1748"
+checksum = "79e5145dde8da7d1b3892dad07a9c98fc04bc39892b1ecc9692cf53e2b780a65"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4caa2b2b68b880003057c1dd49f1ed937e38f22fcf6c212188a121f08cf40a65"
+checksum = "e9e59fdc009a4b3096bf94f740a0f2424c082521f20a9b08c5c07c48d90fd9b9"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -1546,9 +1546,9 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "611834ce18aaa1bd13c4b374f5d653e1027cf99b6b502584ff8c9a64413b30bb"
+checksum = "28be053525281ad8259d47e4de5de657b25e7bac113458555bb4b70bc6870500"
 
 [[package]]
 name = "futures-lite"
@@ -1561,15 +1561,15 @@ dependencies = [
  "futures-io",
  "memchr",
  "parking",
- "pin-project-lite 0.2.0",
+ "pin-project-lite 0.2.4",
  "waker-fn",
 ]
 
 [[package]]
 name = "futures-macro"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77408a692f1f97bcc61dc001d752e00643408fbc922e4d634c655df50d595556"
+checksum = "c287d25add322d9f9abdcdc5927ca398917996600182178774032e9f8258fedd"
 dependencies = [
  "proc-macro-hack",
  "proc-macro2",
@@ -1579,24 +1579,24 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f878195a49cee50e006b02b93cf7e0a95a38ac7b776b4c4d9cc1207cd20fcb3d"
+checksum = "caf5c69029bda2e743fddd0582d1083951d65cc9539aebf8812f36c3491342d6"
 
 [[package]]
 name = "futures-task"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c554eb5bf48b2426c4771ab68c6b14468b6e76cc90996f528c3338d761a4d0d"
+checksum = "13de07eb8ea81ae445aca7b69f5f7bf15d7bf4912d8ca37d6645c77ae8a58d86"
 dependencies = [
  "once_cell",
 ]
 
 [[package]]
 name = "futures-util"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d304cff4a7b99cfb7986f7d43fbe93d175e72e704a8860787cc95e9ffd85cbd2"
+checksum = "632a8cd0f2a4b3fdea1657f08bde063848c3bd00f9bbf6e256b8be78802e624b"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -1605,7 +1605,7 @@ dependencies = [
  "futures-sink",
  "futures-task",
  "memchr",
- "pin-project 1.0.2",
+ "pin-project-lite 0.2.4",
  "pin-utils",
  "proc-macro-hack",
  "proc-macro-nested",
@@ -1633,6 +1633,17 @@ dependencies = [
  "wasi 0.9.0+wasi-snapshot-preview1",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "wasi 0.10.0+wasi-snapshot-preview1",
+]
+
 [[package]]
 name = "ghash"
 version = "0.3.1"
@@ -1674,9 +1685,9 @@ dependencies = [
 
 [[package]]
 name = "half"
-version = "1.6.0"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d36fab90f82edc3c747f9d438e06cf0a491055896f2a279638bb5beed6c40177"
+checksum = "62aca2aba2d62b4a7f5b33f3712cb1b0692779a56fb510499d5c0aa594daeaf3"
 
 [[package]]
 name = "hashbrown"
@@ -1707,9 +1718,9 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.17"
+version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aca5565f760fb5b220e499d72710ed156fdb74e631659e99377d9ebfbd13ae8"
+checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
 dependencies = [
  "libc",
 ]
@@ -1777,9 +1788,9 @@ dependencies = [
 
 [[package]]
 name = "http-types"
-version = "2.9.0"
+version = "2.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2ab8d0085fb82859c9adf050bd53992297ecdd03a665a230dfa50c8c964bf3d"
+checksum = "32613ebb139d1d430ef5783676f84abfa06fc5f2b4b5a25220cdeeff7e16ef5c"
 dependencies = [
  "anyhow",
  "async-channel",
@@ -1788,8 +1799,8 @@ dependencies = [
  "cookie",
  "futures-lite",
  "infer",
- "pin-project-lite 0.1.11",
- "rand",
+ "pin-project-lite 0.2.4",
+ "rand 0.7.3",
  "serde",
  "serde_json",
  "serde_qs",
@@ -1942,9 +1953,9 @@ dependencies = [
 
 [[package]]
 name = "kamadak-exif"
-version = "0.5.2"
+version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "524f22a6373f7d4f4e7caa44d54efbaf1e92c09d41f38647db2784ebce610aa8"
+checksum = "c239168b16a336b3e279932902c5e74036601a483f9c1bcc3491af02b60c51e3"
 dependencies = [
  "mutate_once",
 ]
@@ -1976,7 +1987,7 @@ dependencies = [
 [[package]]
 name = "lettre"
 version = "0.9.2"
-source = "git+https://github.com/deltachat/lettre#96555ec428ac114ecfca9934d2fda34c13737e54"
+source = "git+https://github.com/deltachat/lettre?branch=master#96555ec428ac114ecfca9934d2fda34c13737e54"
 dependencies = [
  "fast_chemail",
  "log",
@@ -1985,7 +1996,7 @@ dependencies = [
 [[package]]
 name = "lettre_email"
 version = "0.9.2"
-source = "git+https://github.com/deltachat/lettre#96555ec428ac114ecfca9934d2fda34c13737e54"
+source = "git+https://github.com/deltachat/lettre?branch=master#96555ec428ac114ecfca9934d2fda34c13737e54"
 dependencies = [
  "base64 0.11.0",
  "email",
@@ -2012,9 +2023,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1482821306169ec4d07f6aca392a4681f66c75c9918aa49641a2595db64053cb"
+checksum = "89203f3fba0a3795506acaad8ebce3c80c0af93f994d5a1d7a0b1eeb23271929"
 
 [[package]]
 name = "libm"
@@ -2035,9 +2046,9 @@ dependencies = [
 
 [[package]]
 name = "linked-hash-map"
-version = "0.5.3"
+version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8dd5a6d5999d9907cda8ed67bbd137d3af8085216c2ac62de5be860bd41f304a"
+checksum = "7fb9b38af92608140b86b693604b9ffcc5824240a484d1ecd4795bacb2fe88f3"
 
 [[package]]
 name = "lock_api"
@@ -2050,9 +2061,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.11"
+version = "0.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b"
+checksum = "fcf3805d4480bb5b86070dcfeb9e2cb2ebc148adb753c5cca5f884d1d65a42b2"
 dependencies = [
  "cfg-if 0.1.10",
 ]
@@ -2248,7 +2259,7 @@ dependencies = [
  "num-integer",
  "num-iter",
  "num-traits",
- "rand",
+ "rand 0.7.3",
  "serde",
  "smallvec",
  "zeroize",
@@ -2318,9 +2329,9 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.22.0"
+version = "0.23.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d3b63360ec3cb337817c2dbd47ab4a0f170d285d8e5a2064600f3def1402397"
+checksum = "a9a7ab5d64814df0fe4a4b5ead45ed6c5f181ee3ff04ba344313a6c80446c5d4"
 
 [[package]]
 name = "once_cell"
@@ -2436,7 +2447,7 @@ dependencies = [
  "cfg-if 1.0.0",
  "instant",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.1.57",
  "smallvec",
  "winapi",
 ]
@@ -2492,7 +2503,7 @@ dependencies = [
  "num-bigint-dig",
  "num-derive",
  "num-traits",
- "rand",
+ "rand 0.7.3",
  "ripemd160",
  "rsa",
  "sha-1",
@@ -2518,11 +2529,11 @@ dependencies = [
 
 [[package]]
 name = "pin-project"
-version = "1.0.2"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ccc2237c2c489783abd8c4c80e5450fc0e98644555b1364da68cc29aa151ca7"
+checksum = "95b70b68509f17aa2857863b6fa00bf21fc93674c7a8893de2f469f6aa7ca2f2"
 dependencies = [
- "pin-project-internal 1.0.2",
+ "pin-project-internal 1.0.4",
 ]
 
 [[package]]
@@ -2538,9 +2549,9 @@ dependencies = [
 
 [[package]]
 name = "pin-project-internal"
-version = "1.0.2"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8e8d2bf0b23038a4424865103a4df472855692821aab4e4f5c3312d461d9e5f"
+checksum = "caa25a6393f22ce819b0f50e0be89287292fda8d425be38ee0ca14c4931d9e71"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2555,9 +2566,9 @@ checksum = "c917123afa01924fc84bb20c4c03f004d9c38e5127e3c039bbf7f4b9c76a2f6b"
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.0"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b063f57ec186e6140e2b8b6921e5f1bd89c7356dda5b33acc5401203ca6131c"
+checksum = "439697af366c49a6d0a010c56a0d97685bc140ce0d377b13a2ea2aa42d64a827"
 
 [[package]]
 name = "pin-utils"
@@ -2655,9 +2666,9 @@ checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
 
 [[package]]
 name = "proc-macro-nested"
-version = "0.1.6"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eba180dafb9038b050a4c280019bbedf9f2467b61e5d892dcad585bb57aadc5a"
+checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
 
 [[package]]
 name = "proc-macro2"
@@ -2680,8 +2691,8 @@ dependencies = [
  "lazy_static",
  "num-traits",
  "quick-error",
- "rand",
- "rand_chacha",
+ "rand 0.7.3",
+ "rand_chacha 0.2.2",
  "rand_xorshift",
  "regex-syntax",
  "rusty-fork",
@@ -2745,12 +2756,24 @@ version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
 dependencies = [
- "getrandom",
+ "getrandom 0.1.16",
  "libc",
  "packed_simd",
- "rand_chacha",
- "rand_core",
- "rand_hc",
+ "rand_chacha 0.2.2",
+ "rand_core 0.5.1",
+ "rand_hc 0.2.0",
+]
+
+[[package]]
+name = "rand"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "18519b42a40024d661e1714153e9ad0c3de27cd495760ceb09710920f1098b1e"
+dependencies = [
+ "libc",
+ "rand_chacha 0.3.0",
+ "rand_core 0.6.1",
+ "rand_hc 0.3.0",
 ]
 
 [[package]]
@@ -2760,7 +2783,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
 dependencies = [
  "ppv-lite86",
- "rand_core",
+ "rand_core 0.5.1",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
+dependencies = [
+ "ppv-lite86",
+ "rand_core 0.6.1",
 ]
 
 [[package]]
@@ -2769,7 +2802,16 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
 dependencies = [
- "getrandom",
+ "getrandom 0.1.16",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c026d7df8b298d90ccbbc5190bd04d85e159eaf5576caeacf8741da93ccbd2e5"
+dependencies = [
+ "getrandom 0.2.2",
 ]
 
 [[package]]
@@ -2778,7 +2820,16 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
 dependencies = [
- "rand_core",
+ "rand_core 0.5.1",
+]
+
+[[package]]
+name = "rand_hc"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3190ef7066a446f2e7f42e239d161e905420ccab01eb967c9eb27d21b2322a73"
+dependencies = [
+ "rand_core 0.6.1",
 ]
 
 [[package]]
@@ -2787,7 +2838,7 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77d416b86801d23dde1aa643023b775c3a462efc0ed96443add11546cdf1dca8"
 dependencies = [
- "rand_core",
+ "rand_core 0.5.1",
 ]
 
 [[package]]
@@ -2821,22 +2872,31 @@ version = "0.1.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
 
+[[package]]
+name = "redox_syscall"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05ec8ca9416c5ea37062b502703cd7fcb207736bc294f6e0cf367ac6fc234570"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "redox_users"
 version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "de0737333e7a9502c789a36d7c7fa6092a49895d4faa31ca5df163857ded2e9d"
 dependencies = [
- "getrandom",
- "redox_syscall",
+ "getrandom 0.1.16",
+ "redox_syscall 0.1.57",
  "rust-argon2",
 ]
 
 [[package]]
 name = "regex"
-version = "1.4.2"
+version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38cf2c13ed4745de91a5eb834e11c00bcc3709e773173b2ce4c56c9fbde04b9c"
+checksum = "d9251239e129e16308e70d853559389de218ac275b515068abc96829d05b948a"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -2855,9 +2915,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.21"
+version = "0.6.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b181ba2dcf07aaccad5448e8ead58db5b742cf85dfe035e2227f137a539a189"
+checksum = "b5eb417147ba9860a96cfe72a0b93bf88fee1744b5636ec99ab20c1aa9376581"
 
 [[package]]
 name = "remove_dir_all"
@@ -2924,7 +2984,7 @@ dependencies = [
  "num-iter",
  "num-traits",
  "pem",
- "rand",
+ "rand 0.7.3",
  "sha2",
  "simple_asn1",
  "subtle",
@@ -3099,9 +3159,9 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
 [[package]]
 name = "serde"
-version = "1.0.118"
+version = "1.0.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06c64263859d87aa2eb554587e2d23183398d617427327cf2b3d0ed8c69e4800"
+checksum = "6159e3c76cab06f6bc466244d43b35e77e9500cd685da87620addadc2a4c40b1"
 dependencies = [
  "serde_derive",
 ]
@@ -3118,9 +3178,9 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.118"
+version = "1.0.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c84d3526699cd55261af4b941e4e725444df67aa4f9e6a3564f18030d12672df"
+checksum = "f3fcab8778dc651bc65cfab2e4eb64996f3c912b74002fb379c94517e1f27c46"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3227,9 +3287,9 @@ dependencies = [
 
 [[package]]
 name = "signature"
-version = "1.2.2"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29f060a7d147e33490ec10da418795238fd7545bba241504d6b31a409f2e6210"
+checksum = "0f0242b8e50dd9accdd56170e94ca1ebd223b098eb9c83539a6e367d0f36ae68"
 
 [[package]]
 name = "simple-mutex"
@@ -3259,9 +3319,9 @@ checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 
 [[package]]
 name = "smallvec"
-version = "1.6.0"
+version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a55ca5f3b68e41c979bf8c46a6f1da892ca4db8f94023ce0bd32407573b1ac0"
+checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
 
 [[package]]
 name = "socket2"
@@ -3421,9 +3481,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.57"
+version = "1.0.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4211ce9909eb971f111059df92c45640aad50a619cf55cd76476be803c4c68e6"
+checksum = "07cb8b1b4ebf86a89ee88cbd201b022b94138c623644d035185c84d3f41b7e66"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3444,14 +3504,14 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.1.0"
+version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
+checksum = "dac1c663cfc93810f88aed9b8941d48cabf856a1b111c29a40439018d870eb22"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
  "libc",
- "rand",
- "redox_syscall",
+ "rand 0.8.2",
+ "redox_syscall 0.2.4",
  "remove_dir_all",
  "winapi",
 ]
@@ -3496,11 +3556,11 @@ dependencies = [
 
 [[package]]
 name = "thread_local"
-version = "1.0.1"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
+checksum = "301bdd13d23c49672926be451130892d274d3ba0b410c18e00daa7990ff38d99"
 dependencies = [
- "lazy_static",
+ "once_cell",
 ]
 
 [[package]]
@@ -3516,9 +3576,9 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.2.23"
+version = "0.2.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bcdaeea317915d59b2b4cd3b5efcd156c309108664277793f5351700c02ce98b"
+checksum = "273d3ed44dca264b0d6b3665e8d48fb515042d42466fad93d2a45b90ec4058f7"
 dependencies = [
  "const_fn",
  "libc",
@@ -3554,9 +3614,9 @@ dependencies = [
 
 [[package]]
 name = "tinytemplate"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d3dc76004a03cec1c5932bca4cdc2e39aaa798e3f82363dd94f9adf6098c12f"
+checksum = "a2ada8616fad06a2d0c455adc530de4ef57605a8120cc65da9653e0e9623ca74"
 dependencies = [
  "serde",
  "serde_json",
@@ -3599,7 +3659,7 @@ dependencies = [
  "idna",
  "lazy_static",
  "log",
- "rand",
+ "rand 0.7.3",
  "smallvec",
  "thiserror",
  "url",
@@ -3726,11 +3786,11 @@ checksum = "8772a4ccbb4e89959023bc5b7cb8623a795caa7092d99f3aa9501b9484d4557d"
 
 [[package]]
 name = "uuid"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fde2f6a4bea1d6e007c4ad38c6839fa71cbb63b6dbf5b595aa38dc9b1093c11"
+checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
 dependencies = [
- "rand",
+ "getrandom 0.2.2",
  "serde",
 ]
 
@@ -3955,7 +4015,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bc614d95359fd7afc321b66d2107ede58b246b844cf5d8a0adcca413e439f088"
 dependencies = [
  "curve25519-dalek",
- "rand_core",
+ "rand_core 0.5.1",
  "zeroize",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index 3c3fa5e03..2f7997616 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,7 @@ email = { git = "https://github.com/deltachat/rust-email", branch = "master" }
 lettre_email = { git = "https://github.com/deltachat/lettre", branch = "master" }
 async-imap = "0.4.0"
 async-native-tls = { version = "0.3.3" }
-async-std = { version = "1.6.4", features = ["unstable"] }
+async-std = { version = "~1.8.0", features = ["unstable"] }
 base64 = "0.12"
 charset = "0.1"
 percent-encoding = "2.0"