diff --git a/wit-manifest.json b/wit-manifest.json
index e941e91d5d5..1bbda163158 100644
--- a/wit-manifest.json
+++ b/wit-manifest.json
@@ -15,7 +15,7 @@
         "source": "git@github.com:freechipsproject/chisel3.git"
     },
     {
-        "commit": "05d047a9befda3877f5d8a0a9e1076ffd520ddf9",
+        "commit": "7756f8f9634b68a1375d2c2ca13abc5742234201",
         "name": "firrtl",
         "source": "git@github.com:freechipsproject/firrtl.git"
     },