diff --git a/Cargo.lock b/Cargo.lock
index f39b0b992..7d3c196ac 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -206,7 +206,7 @@ dependencies = [
  "httparse",
  "lazy_static",
  "log",
- "pin-project 1.0.8",
+ "pin-project",
 ]
 
 [[package]]
@@ -310,7 +310,7 @@ dependencies = [
  "hostname 0.1.5",
  "log",
  "nom 5.1.2",
- "pin-project 1.0.8",
+ "pin-project",
  "pin-utils",
  "serde",
  "serde_derive",
@@ -363,15 +363,15 @@ dependencies = [
 
 [[package]]
 name = "async-tar"
-version = "0.3.0"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb619eae01ab289095debb1ff7c02710d5124c20edde1b2eca926572a34c3998"
+checksum = "5c49359998a76e32ef6e870dbc079ebad8f1e53e8441c5dd39d27b44493fe331"
 dependencies = [
  "async-std",
  "filetime",
  "libc",
- "pin-project 0.4.28",
- "redox_syscall 0.1.57",
+ "pin-project",
+ "redox_syscall",
  "xattr",
 ]
 
@@ -1518,7 +1518,7 @@ checksum = "975ccf83d8d9d0d84682850a38c8169027be83368805971cc4f238c2b245bc98"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
- "redox_syscall 0.2.10",
+ "redox_syscall",
  "winapi",
 ]
 
@@ -2561,7 +2561,7 @@ dependencies = [
  "cfg-if 1.0.0",
  "instant",
  "libc",
- "redox_syscall 0.2.10",
+ "redox_syscall",
  "smallvec",
  "winapi",
 ]
@@ -2633,33 +2633,13 @@ dependencies = [
  "zeroize",
 ]
 
-[[package]]
-name = "pin-project"
-version = "0.4.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "918192b5c59119d51e0cd221f4d49dde9112824ba717369e903c97d076083d0f"
-dependencies = [
- "pin-project-internal 0.4.28",
-]
-
 [[package]]
 name = "pin-project"
 version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "576bc800220cc65dac09e99e97b08b358cfab6e17078de8dc5fee223bd2d0c08"
 dependencies = [
- "pin-project-internal 1.0.8",
-]
-
-[[package]]
-name = "pin-project-internal"
-version = "0.4.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3be26700300be6d9d23264c73211d8190e755b6b5ca7a1b28230025511b52a5e"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
+ "pin-project-internal",
 ]
 
 [[package]]
@@ -3037,12 +3017,6 @@ dependencies = [
  "num_cpus",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.1.57"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
-
 [[package]]
 name = "redox_syscall"
 version = "0.2.10"
@@ -3059,7 +3033,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "528532f3d801c87aec9def2add9ca802fe569e44a544afe633765267840abe64"
 dependencies = [
  "getrandom 0.2.3",
- "redox_syscall 0.2.10",
+ "redox_syscall",
 ]
 
 [[package]]
@@ -3696,7 +3670,7 @@ dependencies = [
  "cfg-if 1.0.0",
  "libc",
  "rand 0.8.4",
- "redox_syscall 0.2.10",
+ "redox_syscall",
  "remove_dir_all",
  "winapi",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 649dea0cd..7771ebac2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ async-native-tls = { version = "0.3" }
 async-smtp = { git = "https://github.com/async-email/async-smtp", branch="master", features = ["socks5"] }
 async-std-resolver = "0.20"
 async-std = { version = "1", features = ["unstable"] }
-async-tar = "0.3"
+async-tar = "0.4"
 async-trait = "0.1"
 backtrace = "0.3"
 base64 = "0.13"