diff --git a/Cargo.toml b/Cargo.toml
index c914a3923ef..5e24f9a102f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,11 +17,10 @@ parking_lot = "^0.5"
 serde = "^1.0"
 serde_derive = "^1.0"
 serde_json = "^1.0"
-cc = "=1.0.25"
 
 [dependencies.base64]
 optional = true
-version = "=0.10.0"
+version = "0.10"
 
 [dependencies.byteorder]
 optional = true