diff --git a/Cargo.toml b/Cargo.toml
index 510df9ca2..5e8e1b6c1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,7 +15,7 @@ rust-version = "1.59.0"
 aes = { version = "0.8.2", optional = true }
 byteorder = "1.4.3"
 bzip2 = { version = "0.4.3", optional = true }
-constant_time_eq = { version = "0.1.5", optional = true }
+constant_time_eq = { version = "0.3.0", optional = true }
 crc32fast = "1.3.2"
 flate2 = { version = "1.0.23", default-features = false, optional = true }
 hmac = { version = "0.12.1", optional = true, features = ["reset"] }