diff --git a/CHANGELOG.md b/CHANGELOG.md
index e87d037..31511b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## `v0.4.10` (2024-08-19)
+
+*   update `base64` dep to 0.22
+
 ## `v0.4.9` (2024-08-19)
 
 *   added helpers for building `.mp4` `VisualSampleEntry` and `AudioSampleEntry`
diff --git a/Cargo.lock b/Cargo.lock
index 6c574a3..a0593ea 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -168,6 +168,12 @@ version = "0.21.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "35636a1494ede3b646cc98f74f8e62c773a38a659ebc777a2cf26b9b74171df9"
 
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+
 [[package]]
 name = "base64ct"
 version = "1.5.1"
@@ -992,11 +998,11 @@ dependencies = [
 
 [[package]]
 name = "http-auth"
-version = "0.1.9"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "643c9bbf6a4ea8a656d6b4cd53d34f79e3f841ad5203c1a55fb7d761923bc255"
+checksum = "150fa4a9462ef926824cf4519c84ed652ca8f4fbae34cb8af045b5cbcaf98822"
 dependencies = [
- "base64",
+ "base64 0.22.1",
  "digest",
  "hex",
  "md-5",
@@ -1411,7 +1417,7 @@ version = "3.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1b8fcc794035347fb64beda2d3b462595dd2753e3f268d89c5aae77e8cf2c310"
 dependencies = [
- "base64",
+ "base64 0.21.5",
  "serde",
 ]
 
@@ -1710,9 +1716,9 @@ checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 
 [[package]]
 name = "retina"
-version = "0.4.9"
+version = "0.4.10"
 dependencies = [
- "base64",
+ "base64 0.22.1",
  "bitstream-io",
  "bytes",
  "criterion",
@@ -2134,7 +2140,7 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7beb1624a3ea34778d58d30e2b8606b4d29fe65e87c4d50b87ed30afd5c3830c"
 dependencies = [
- "base64",
+ "base64 0.21.5",
  "crc",
  "lazy_static",
  "md-5",
@@ -2363,7 +2369,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58f4fcb97da0426e8146fe0e9b78cc13120161087256198701d12d9df77f7701"
 dependencies = [
  "async-trait",
- "base64",
+ "base64 0.21.5",
  "futures",
  "log",
  "md-5",
@@ -2719,7 +2725,7 @@ name = "webrtc-proxy"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "base64",
+ "base64 0.21.5",
  "clap",
  "futures",
  "log",
diff --git a/Cargo.toml b/Cargo.toml
index 6d0730a..6563f71 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ default-members = ["."]
 
 [package]
 name = "retina"
-version = "0.4.9"
+version = "0.4.10"
 authors = ["Scott Lamb <slamb@slamb.org>"]
 license = "MIT/Apache-2.0"
 edition = "2021"
@@ -22,7 +22,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 all-features = true
 
 [dependencies]
-base64 = "0.21.0"
+base64 = "0.22.0"
 bitstream-io = "1.1"
 bytes = "1.0.1"
 futures = "0.3.14"
diff --git a/fuzz/Cargo.lock b/fuzz/Cargo.lock
index 0977268..443a517 100644
--- a/fuzz/Cargo.lock
+++ b/fuzz/Cargo.lock
@@ -22,9 +22,9 @@ checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 
 [[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 = "bitstream-io"
@@ -533,9 +533,9 @@ checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
 
 [[package]]
 name = "retina"
-version = "0.4.9"
+version = "0.4.10"
 dependencies = [
- "base64 0.21.7",
+ "base64 0.22.1",
  "bitstream-io",
  "bytes",
  "futures",