diff --git a/integration/sleep/go.mod b/integration/sleep/go.mod
index c8f50e7..92ccd8f 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 go1.22.10S
+toolchain go1.22.10
 
 require go.etcd.io/gofail v0.1.1-0.20240328162059-93c579a86c46