diff --git a/Cargo.toml b/Cargo.toml
index ab7914f..4a170c3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ readme = "README.md"
 repository = "https://github.com/sbstp/attohttpc"
 
 [dependencies]
-base64 = {version = "0.21.2", optional = true}
+base64 = {version = "0.22.0", optional = true}
 encoding_rs = {version = "0.8.31", optional = true}
 encoding_rs_io = {version = "0.1.7", optional = true}
 flate2 = {version = "1.0.24", default-features = false, optional = true}