diff --git a/Cargo.lock b/Cargo.lock
index a9f7b2960..bd2857b77 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -313,12 +313,12 @@ dependencies = [
 
 [[package]]
 name = "async-smtp"
-version = "0.10.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ee04bcf0a7ebf5594f9aff84935dc8cb0490b65055913a7a4c4d08f81e181d6"
+checksum = "7c2d87bfab790b8b5b718a65bbcca6187f0d091270ea21f8c12fa03ce3823aba"
 dependencies = [
  "anyhow",
- "base64 0.13.1",
+ "base64 0.22.1",
  "futures",
  "log",
  "nom",
@@ -410,12 +410,6 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
 
-[[package]]
-name = "base64"
-version = "0.13.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
-
 [[package]]
 name = "base64"
 version = "0.21.7"
diff --git a/deny.toml b/deny.toml
index 1ba2a0cbf..420f03b92 100644
--- a/deny.toml
+++ b/deny.toml
@@ -24,7 +24,6 @@ ignore = [
 # Please keep this list alphabetically sorted.
 skip = [
      { name = "async-channel", version = "1.9.0" },
-     { name = "base64", version = "<0.21" },
      { name = "base64", version = "0.21.7" },
      { name = "bitflags", version = "1.3.2" },
      { name = "core-foundation", version = "0.9.4" },