diff --git a/Cargo.toml b/Cargo.toml
index 339ca20..f2c4457 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,6 +12,6 @@ exclude = ["examples/*", "tests/*"]
 keywords = ["firebase", "rest", "api"]
 
 [dependencies]
-url  = "0.2.35"
-curl = "0.2.10"
-rustc-serialize = "0.3.15"
+url  = "0.5"
+curl = "0.2"
+rustc-serialize = "0.3"