diff --git a/WORKSPACE b/WORKSPACE
index 78f97ef68a..44390a2105 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -210,7 +210,7 @@ go_repository(
 
 go_repository(
     name = "com_github_prysmaticlabs_go_ssz",
-    commit = "7e767fb53d02ea220428a6cc0850ee6e17d71bb1",
+    commit = "f9cd0959d8e107241bcb4bad1d4d8e72b3e9f7b4",
     importpath = "github.com/prysmaticlabs/go-ssz",
 )