diff --git a/.github/workflows/ci-release.yml b/.github/workflows/ci-release.yml
index 313d481..9bef368 100644
--- a/.github/workflows/ci-release.yml
+++ b/.github/workflows/ci-release.yml
@@ -15,7 +15,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v6
       with:
-        go-version: '1.26'
+        go-version: '1.27'
     - name: Test
       run: make test-all
 
diff --git a/go.mod b/go.mod
index 5501ddd..c7770f3 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module github.com/baizeai/kcover
 
 go 1.26.0
 
-toolchain go1.26.5
+toolchain go1.27.0
 
 require (
 	github.com/jellydator/ttlcache/v3 v3.4.1