diff --git a/hmm.json b/hmm.json
index e80c671..35cfb73 100644
--- a/hmm.json
+++ b/hmm.json
@@ -43,7 +43,7 @@
     {
       "name": "hxCodec",
       "type": "haxelib",
-      "version": null
+      "version": "2.5.1"
     },
     {
       "name": "hscript",