diff --git a/Cargo.lock b/Cargo.lock
index 7a50141e2..bcb062113 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1172,7 +1172,7 @@ dependencies = [
  "async-tar",
  "async-trait",
  "backtrace",
- "base64 0.12.3",
+ "base64 0.13.0",
  "bitflags",
  "byteorder",
  "charset",
@@ -1187,7 +1187,7 @@ dependencies = [
  "hex",
  "image",
  "indexmap",
- "itertools 0.9.0",
+ "itertools 0.10.0",
  "kamadak-exif",
  "lettre_email",
  "libc",
@@ -3645,15 +3645,15 @@ checksum = "6446ced80d6c486436db5c078dde11a9f73d42b57fb273121e160b84f63d894c"
 
 [[package]]
 name = "strum"
-version = "0.19.5"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b89a286a7e3b5720b9a477b23253bc50debac207c8d21505f8e70b36792f11b5"
+checksum = "7318c509b5ba57f18533982607f24070a55d353e90d4cae30c467cdb2ad5ac5c"
 
 [[package]]
 name = "strum_macros"
-version = "0.19.4"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e61bb0be289045cb80bfce000512e32d09f8337e54c186725da381377ad1f8d5"
+checksum = "ee8bc6b87a5112aeeab1f4a9f7ab634fe6cbefc4850006df31267f4cfb9e3149"
 dependencies = [
  "heck",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 1875fc18e..2e2e31762 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ async-std = { version = "~1.8.0", features = ["unstable"] }
 async-tar = "0.3.0"
 async-trait = "0.1.31"
 backtrace = "0.3.33"
-base64 = "0.12"
+base64 = "0.13"
 bitflags = "1.1.0"
 byteorder = "1.3.1"
 charset = "0.1"
@@ -35,7 +35,7 @@ futures = "0.3.4"
 hex = "0.4.0"
 image = { version = "0.23.5", default-features=false, features = ["gif", "jpeg", "ico", "png", "pnm", "webp", "bmp"] }
 indexmap = "1.3.0"
-itertools = "0.9.0"
+itertools = "0.10.0"
 kamadak-exif = "0.5"
 lettre_email = { git = "https://github.com/deltachat/lettre", branch = "master" }
 libc = "0.2.51"
@@ -64,8 +64,8 @@ sqlx = { git = "https://github.com/launchbadge/sqlx", branch = "master", feature
 # keep in sync with sqlx
 libsqlite3-sys = { version = "0.22.0", default-features = false, features = [ "pkg-config", "vcpkg", "bundled" ] }
 stop-token = { version = "0.1.1", features = ["unstable"] }
-strum = "0.19.0"
-strum_macros = "0.19.0"
+strum = "0.20.0"
+strum_macros = "0.20.1"
 surf = { version = "2.0.0-alpha.4", default-features = false, features = ["h1-client"] }
 thiserror = "1.0.14"
 toml = "0.5.6"