diff --git a/.go-version b/.go-version
index 229a27c..d28b1eb 100644
--- a/.go-version
+++ b/.go-version
@@ -1 +1 @@
-1.22.8
+1.22.9
diff --git a/go.mod b/go.mod
index 4e25a5b..a8b120d 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/gofail
 
 go 1.22
 
-toolchain go1.22.8
+toolchain go1.22.9
 
 require github.com/stretchr/testify v1.9.0
 
diff --git a/integration/sleep/go.mod b/integration/sleep/go.mod
index ef77f4d..553662f 100644
--- a/integration/sleep/go.mod
+++ b/integration/sleep/go.mod
@@ -2,7 +2,7 @@ module go.etcd.io/gofail/integration/sleep
 
 go 1.22
 
-toolchain go1.22.8
+toolchain go1.22.9
 
 require go.etcd.io/gofail v0.1.1-0.20240328162059-93c579a86c46