diff --git a/Cargo.toml b/Cargo.toml
index c5d362aae..d904ade69 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ build = "src/build.rs"
 chrono = ">= 0.2"
 log = ">= 0.3"
 mime = ">= 0.1"
-url = ">= 0.5"
+url = "= 0.5"
 hyper = ">= 0.8.0"
 itertools = ">= 0.4"
 serde = "0.6.0"