Update libraries
diff --git a/requirements.txt b/requirements.txt
index 1bcbf71..02be17a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,7 @@
-# Update when 0.11 is released (needed for slimit and libsass support)
-webassets==dev
+webassets==0.11
 
 cssmin==0.2.0
-#libsass==0.7.0 # G++ >= 4.8 needed to compile and NA on Debian wheezy
-pyScss==1.3.4 # API may change
+pyScss==1.3.4
 slimit==0.8.1
 
 # Ply 3.6 has an issue that causes slimit to fail