diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index c95d2aa2..21604027 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -16,7 +16,7 @@ jobs:
           fetch-depth: 1
       - uses: actions/setup-go@v2
         with:
-          go-version: 1.17
+          go-version: 1.19
       - name: mod tidy
         run: go mod tidy
       - name: generate code coverage report
@@ -26,4 +26,4 @@ jobs:
         with:
           file: ./coverage.txt
           name: go-sdk code coverage
-          fail_ci_if_error: true
\ No newline at end of file
+          fail_ci_if_error: true
diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 75534e31..459ebb17 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -21,7 +21,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        go: ["1.17", "1.18", "1.19"]
+        go: ["1.18", "1.19"]
     steps:
       - uses: actions/checkout@v2
         with:
@@ -48,4 +48,4 @@ jobs:
         run: bash -x .ci/integration_test.sh -a
       - name: test without amop
         if: ${{ runner.os == 'macOS' }}
-        run: bash .ci/integration_test.sh
\ No newline at end of file
+        run: bash .ci/integration_test.sh
diff --git a/go.mod b/go.mod
index 37390527..99cafe42 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/FISCO-BCOS/go-sdk
 
-go 1.13
+go 1.18
 
 require (
 	github.com/FISCO-BCOS/crypto v0.0.0-20200202032121-bd8ab0b5d4f1