diff --git a/Cargo.toml b/Cargo.toml
index ee38788d..d49e9258 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -39,7 +39,7 @@ rand = "0.8.4"
 term = "0.7"
 
 [features]
-unstable = []
+unstable = ["crc32fast/nightly"]
 benchmarks = []
 
 [[bench]]