diff --git a/Cargo.lock b/Cargo.lock
index a08cbb6..87f1510 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -49,9 +49,15 @@ checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
 [[package]]
 name = "base64"
-version = "0.13.0"
+version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
+checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
+
+[[package]]
+name = "base64"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4a4ddaa51a5bc52a6948f74c06d20aaaddb71924eab79b8c97a8c556e942d6a"
 
 [[package]]
 name = "bitflags"
@@ -920,7 +926,7 @@ version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "35edb675feee39aec9c99fa5ff985081995a06d594114ae14cbe797ad7b7a6d7"
 dependencies = [
- "base64",
+ "base64 0.13.1",
  "log",
  "ring",
  "sct",
@@ -1472,7 +1478,7 @@ name = "websocket-codec"
 version = "0.5.2"
 dependencies = [
  "assert-allocations",
- "base64",
+ "base64 0.21.0",
  "byteorder",
  "bytes",
  "criterion",
@@ -1490,7 +1496,7 @@ dependencies = [
 name = "websocket-lite"
 version = "0.5.2"
 dependencies = [
- "base64",
+ "base64 0.21.0",
  "bytes",
  "futures-util",
  "native-tls",
diff --git a/websocket-codec/Cargo.toml b/websocket-codec/Cargo.toml
index 7178546..609018b 100644
--- a/websocket-codec/Cargo.toml
+++ b/websocket-codec/Cargo.toml
@@ -9,7 +9,7 @@ edition = "2018"
 readme = "../README.md"
 
 [dependencies]
-base64 = "0.13"
+base64 = "0.21"
 byteorder = "1"
 bytes = "1"
 httparse = "1"
diff --git a/websocket-lite/Cargo.toml b/websocket-lite/Cargo.toml
index 0394c55..1766b53 100644
--- a/websocket-lite/Cargo.toml
+++ b/websocket-lite/Cargo.toml
@@ -9,7 +9,7 @@ edition = "2018"
 readme = "../README.md"
 
 [dependencies]
-base64 = "0.13"
+base64 = "0.21"
 bytes = "1"
 futures-util = { version = "0.3", default-features = false }
 native-tls = { version = "0.2", optional = true }