diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80bb98d3a3..b9c95d0e6c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # venus changelog
 
+## v1.11.1
+
+* fix: windowPoST verify fail [[#fvm-1750](https://github.com/filecoin-project/ref-fvm/pull/1750)]
+
 ## v1.11.0
 
 This is the stable release of Venus v1.11.0 for the upcoming MANDATORY network upgrade at `2023-04-27T13:00:00Z`, epoch `2809800`. This release delivers the nv19 Lighting and nv20 Thunder network upgrade for mainnet.
diff --git a/extern/filecoin-ffi b/extern/filecoin-ffi
index ca72a82aed..1e38c8473f 160000
--- a/extern/filecoin-ffi
+++ b/extern/filecoin-ffi
@@ -1 +1 @@
-Subproject commit ca72a82aedb3330dcb75067a42ff7e8dd252c78d
+Subproject commit 1e38c8473fe806255795163ada0fbed081180333
diff --git a/pkg/constants/version.go b/pkg/constants/version.go
index 7bc45fbf08..ff4fbf9a9a 100644
--- a/pkg/constants/version.go
+++ b/pkg/constants/version.go
@@ -5,7 +5,7 @@ import (
 )
 
 // BuildVersion is the local build version, set by build system
-const BuildVersion = "1.11.0"
+const BuildVersion = "1.11.1"
 
 var CurrentCommit string