diff --git a/api/Cargo.toml b/api/Cargo.toml
index 5c9d5d8c9..bf9f1de19 100644
--- a/api/Cargo.toml
+++ b/api/Cargo.toml
@@ -16,7 +16,7 @@ slog = { version = "^2.0.12", features = ["max_level_trace", "release_max_level_
 lazy_static = "1.0"
 iron = "~0.5.1"
 router = "~0.5.1"
-regex = "0.2"
+regex = "^0.2"
 mount = "~0.3.0"
 urlencoded = "~0.5.0"
 serde = "~1.0.8"