diff --git a/Cargo.lock b/Cargo.lock
index 1c97791..f91c787 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -43,9 +43,9 @@ dependencies = [
 
 [[package]]
 name = "aes-gcm-stream"
-version = "0.2.3"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "163d1209787b2226543db17d317f5e9f5f54fd0d0f20834318f92013ebd78f37"
+checksum = "d763ade72c376e5db452ec14f4c966fc907c036ef5cd2972a888e69fe2f811e5"
 dependencies = [
  "aes 0.8.4",
  "cipher 0.4.4",
@@ -144,9 +144,9 @@ checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
 
 [[package]]
 name = "base64"
-version = "0.21.7"
+version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
 [[package]]
 name = "base64ct"
@@ -220,9 +220,9 @@ checksum = "9ac0150caa2ae65ca5bd83f25c7de183dea78d4d366469f148435e2acfbad0da"
 
 [[package]]
 name = "cc"
-version = "1.2.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1aeb932158bd710538c73702db6945cb68a8fb08c519e6e12706b94263b36db8"
+checksum = "fd9de9f2205d5ef3fd67e685b0df337994ddd4495e2a28d185500d0e1edfea47"
 dependencies = [
  "shlex",
 ]
@@ -474,9 +474,9 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.0.34"
+version = "1.0.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1b589b4dc103969ad3cf85c950899926ec64300a1a46d76c03a6072957036f0"
+checksum = "c936bfdafb507ebbf50b8074c54fa31c5be9a1e7e5f467dd659697041407d07c"
 dependencies = [
  "crc32fast",
  "miniz_oxide",
diff --git a/Cargo.toml b/Cargo.toml
index d5d9b15..b2ccd57 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ yubikey = ["yubico_manager"]
 zeroize = "1.8"
 clap = "2.34"
 hex = "0.4"
-base64 = "0.21"
+base64 = "0.22"
 sha2 = "0.10"
 lazy_static = "1.5"
 serde_derive = "1.0"