diff --git a/components/style_traits/Cargo.toml b/components/style_traits/Cargo.toml
index d75d9617336..b089931d3cb 100644
--- a/components/style_traits/Cargo.toml
+++ b/components/style_traits/Cargo.toml
@@ -15,10 +15,6 @@ cssparser = {version = "0.5.4", features = ["heap_size", "serde-serialization"]}
 euclid = {version = "0.6.4", features = ["plugins"]}
 heapsize = "0.3.0"
 heapsize_plugin = "0.1.2"
-lazy_static = "0.1.10"
-log = "0.3.5"
 rustc-serialize = "0.3"
-selectors = {version = "0.5", features = ["heap_size"]}
 serde = "0.7"
 serde_macros = "0.7"
-url = {version = "1.0.0", features = ["heap_size"]}