diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cd6675016..53b1ec954 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: [1.19]
+        go-version: ['1.20']
       fail-fast: true
     steps:
       - name: Set up Go ${{ matrix.go-version }}
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 48f7314eb..0c63dc0be 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -18,7 +18,7 @@ jobs:
       security-events: write
     strategy:
       matrix:
-        go-version: [1.19]
+        go-version: ['1.20']
       fail-fast: false
     steps:
       - name: Checkout repository
diff --git a/.github/workflows/dev-release.yml b/.github/workflows/dev-release.yml
index 195aa799d..6ddadf3f3 100644
--- a/.github/workflows/dev-release.yml
+++ b/.github/workflows/dev-release.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        go-version: [1.19]
+        go-version: ['1.20']
       fail-fast: true
     steps:
       - name: Set up Go ${{ matrix.go-version }}
diff --git a/.github/workflows/release-github.yml b/.github/workflows/release-github.yml
index e30382d43..310e10c3b 100644
--- a/.github/workflows/release-github.yml
+++ b/.github/workflows/release-github.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        go-version: [1.19]
+        go-version: ['1.20']
       fail-fast: true
     steps:
       - name: Set up Go ${{ matrix.go-version }}
diff --git a/go.mod b/go.mod
index 5138f9129..2f825c0fc 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/notaryproject/notation
 
-go 1.19
+go 1.20
 
 require (
 	github.com/docker/docker-credential-helpers v0.7.0
diff --git a/test/e2e/go.mod b/test/e2e/go.mod
index 3cc37609c..89873fd37 100644
--- a/test/e2e/go.mod
+++ b/test/e2e/go.mod
@@ -1,6 +1,6 @@
 module github.com/notaryproject/notation/test/e2e
 
-go 1.19
+go 1.20
 
 require (
 	github.com/notaryproject/notation-core-go v1.0.0-rc.1
diff --git a/test/e2e/plugin/go.mod b/test/e2e/plugin/go.mod
index 47120d3b9..ffdc0828e 100644
--- a/test/e2e/plugin/go.mod
+++ b/test/e2e/plugin/go.mod
@@ -1,6 +1,6 @@
 module github.com/notaryproject/notation/test/e2e/plugin
 
-go 1.19
+go 1.20
 
 require (
 	github.com/golang-jwt/jwt v3.2.2+incompatible