diff --git a/postgres-protocol/Cargo.toml b/postgres-protocol/Cargo.toml
index b44994811..bc83fc4e6 100644
--- a/postgres-protocol/Cargo.toml
+++ b/postgres-protocol/Cargo.toml
@@ -13,7 +13,7 @@ default = []
 js = ["getrandom/js"]
 
 [dependencies]
-base64 = "0.21"
+base64 = "0.22"
 byteorder = "1.0"
 bytes = "1.0"
 fallible-iterator = "0.2"