diff --git a/firrtl b/firrtl
index 2909fc87f4b..ad31c1143e6 160000
--- a/firrtl
+++ b/firrtl
@@ -1 +1 @@
-Subproject commit 2909fc87f4bb73cd2c0210ff061f5ee9bb14c86f
+Subproject commit ad31c1143e609f5d870b0f655499cca08b15a1b2
diff --git a/wit-manifest.json b/wit-manifest.json
index 5864d3ae347..d8139193b38 100644
--- a/wit-manifest.json
+++ b/wit-manifest.json
@@ -15,7 +15,7 @@
         "source": "git@github.com:freechipsproject/chisel3.git"
     },
     {
-        "commit": "2909fc87f4bb73cd2c0210ff061f5ee9bb14c86f",
+        "commit": "ad31c1143e609f5d870b0f655499cca08b15a1b2",
         "name": "firrtl",
         "source": "git@github.com:freechipsproject/firrtl.git"
     },