diff --git a/zcash-issue-dag.py b/zcash-issue-dag.py
index dabeda96..3f204f09 100755
--- a/zcash-issue-dag.py
+++ b/zcash-issue-dag.py
@@ -31,7 +31,6 @@ CORE_REPOS = {
     290019239: ('zcash', 'halo2'),
     305835578: ('zcash', 'orchard'),
     344239327: ('zcash', 'pasta_curves'),
-    421088069: ('zcash', 'halo2_gadgets'),
 }
 
 WALLET_REPOS = {