diff --git a/requirements.txt b/requirements.txt
index 5ebfd53..19bbaa4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,5 @@
-webassets==0.11.1
-
+webassets==0.12.1
 cssmin==0.2.0
 pyScss==1.3.4
 slimit==0.8.1
-
-ply==3.8
+ply==3.9