diff --git a/awc/CHANGES.md b/awc/CHANGES.md
index 67bbc38c..f501674e 100644
--- a/awc/CHANGES.md
+++ b/awc/CHANGES.md
@@ -6,6 +6,7 @@
 
 * Implement `std::error::Error` for our custom errors [#1422]
 * Bump minimum supported Rust version to 1.40
+* Update `base64` dependency to 0.12
 
 [#1422]: https://github.com/actix/actix-web/pull/1422
 
diff --git a/awc/Cargo.toml b/awc/Cargo.toml
index c31c1902..894674c9 100644
--- a/awc/Cargo.toml
+++ b/awc/Cargo.toml
@@ -39,7 +39,7 @@ actix-service = "1.0.1"
 actix-http = "2.0.0-alpha.3"
 actix-rt = "1.0.0"
 
-base64 = "0.11"
+base64 = "0.12"
 bytes = "0.5.3"
 derive_more = "0.99.2"
 futures-core = { version = "0.3.5", default-features = false }