diff --git a/hmm.json b/hmm.json
index ceaaf498f..0d40db74f 100644
--- a/hmm.json
+++ b/hmm.json
@@ -190,7 +190,7 @@
       "name": "polymod",
       "type": "git",
       "dir": null,
-      "ref": "51c440e8af4da2032813ed285d485a9aafdccb51",
+      "ref": "98739ec50ba41e3ae5b91fb14fac28e7b778472d",
       "url": "https://github.com/larsiusprime/polymod"
     },
     {