diff --git a/Cargo.lock b/Cargo.lock
index f895f462..ec0521b8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -116,9 +116,9 @@ checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
 [[package]]
 name = "base64"
-version = "0.21.0"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4a4ddaa51a5bc52a6948f74c06d20aaaddb71924eab79b8c97a8c556e942d6a"
+checksum = "604178f6c5c21f02dc555784810edfb88d34ac2c73b2eae109655649ee73ce3d"
 
 [[package]]
 name = "bitflags"
@@ -1500,7 +1500,7 @@ version = "0.11.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "27b71749df584b7f4cac2c426c127a7c785a5106cc98f7a8feb044115f0fa254"
 dependencies = [
- "base64 0.21.0",
+ "base64 0.21.2",
  "bytes",
  "encoding_rs",
  "futures-core",
@@ -1540,7 +1540,7 @@ dependencies = [
  "adler32",
  "async-stream",
  "async-trait",
- "base64 0.21.0",
+ "base64 0.21.2",
  "bytes",
  "criterion",
  "futures-util",
@@ -1564,7 +1564,7 @@ dependencies = [
  "adler32",
  "async-stream",
  "backoff",
- "base64 0.21.0",
+ "base64 0.21.2",
  "bytes",
  "cargo-tarpaulin",
  "futures-util",
diff --git a/engineio/Cargo.toml b/engineio/Cargo.toml
index 9096547c..d36c59a6 100644
--- a/engineio/Cargo.toml
+++ b/engineio/Cargo.toml
@@ -11,7 +11,7 @@ categories = ["network-programming", "web-programming", "web-programming::websoc
 license = "MIT"
 
 [dependencies]
-base64 = "0.21.0"
+base64 = "0.21.2"
 bytes = "1"
 reqwest = { version = "0.11.16", features = ["blocking", "native-tls", "stream"] }
 adler32 = "1.2.0"
diff --git a/socketio/Cargo.toml b/socketio/Cargo.toml
index ef5c03ce..95bb4d6e 100644
--- a/socketio/Cargo.toml
+++ b/socketio/Cargo.toml
@@ -12,7 +12,7 @@ license = "MIT"
 
 [dependencies]
 rust_engineio = { version = "0.4.2", path = "../engineio" }
-base64 = "0.21.0"
+base64 = "0.21.2"
 bytes = "1"
 backoff = "0.4"
 rand = "0.8.5"