diff --git a/hmm.json b/hmm.json
index 42d17743f..6a8575eb0 100644
--- a/hmm.json
+++ b/hmm.json
@@ -146,7 +146,7 @@
       "name": "polymod",
       "type": "git",
       "dir": null,
-      "ref": "be712450e5d3ba446008884921bb56873b299a64",
+      "ref": "682548319a272f6e4c9efa97aca081866426d5c7",
       "url": "https://github.com/larsiusprime/polymod"
     },
     {