diff --git a/include/circt.json b/include/circt.json
index 0305fbee..a6158239 100644
--- a/include/circt.json
+++ b/include/circt.json
@@ -1,3 +1,3 @@
 {
-  "version": "firtool-1.81.0"
+  "version": "firtool-1.81.1"
 }