diff --git a/.github/workflows/api_diff_check.yml b/.github/workflows/api_diff_check.yml
index 8ae15d5a7..4b797197d 100644
--- a/.github/workflows/api_diff_check.yml
+++ b/.github/workflows/api_diff_check.yml
@@ -16,7 +16,7 @@ jobs:
     - name: Set up Go 1.x
       uses: actions/setup-go@v2
       with:
-        go-version: "1.20"
+        go-version: "1.21"
       id: go
 
     - name: Check out code into the Go module directory
diff --git a/.github/workflows/codegen.yml b/.github/workflows/codegen.yml
index 1e28c90d0..3b0e5b5b6 100644
--- a/.github/workflows/codegen.yml
+++ b/.github/workflows/codegen.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        go-version: ["1.20"]
+        go-version: ["1.21"]
     env:
       JAVA_TOOL_OPTIONS: "-Xmx2g"
     steps:
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index ae415f25c..529fb6419 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        go-version: ["1.20", "1.21", "1.22"]
+        go-version: ["1.21", "1.22", "1.23"]
     steps:
     - uses: actions/checkout@v2
 
diff --git a/go.mod b/go.mod
index 1139d913e..f2ce1b083 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module github.com/aws/smithy-go
 
-go 1.20
+go 1.21