diff --git a/package.json b/package.json
index 212ffcd..c77c8f4 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
   },
   "dependencies": {
     "fastify-plugin": "^4.0.0",
-    "mnemonist": "0.39.6"
+    "mnemonist": "0.39.8"
   },
   "tsd": {
     "directory": "test"