diff --git a/Cargo.toml b/Cargo.toml
index e4c2d24..86a66fa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ serde = { version = "1.0", default-features = false }
 fallible-streaming-iterator = { version = "0.1" }
 
 libflate = { version = "1.1.1", optional = true }
-snap = { version = "1", optional = true }
+snap = { version = "^1", optional = true }
 crc = { version = "2", optional = true }
 
 # for async