diff --git a/.build/gcs_upload.yaml b/.build/gcs_upload.yaml
index 99d6b4da6..dceb157a8 100644
--- a/.build/gcs_upload.yaml
+++ b/.build/gcs_upload.yaml
@@ -20,7 +20,7 @@ options:
 
 steps:
   - id: linux.amd64
-    name: "golang:1.20"
+    name: "golang:1.21"
     env:
       - "GOOS=linux"
       - "GOARCH=amd64"
@@ -29,7 +29,7 @@ steps:
       - "-c"
       - 'go build -ldflags "-X github.com/GoogleCloudPlatform/cloud-sql-proxy/v2/cmd.metadataString=$$GOOS.$$GOARCH" -o cloud-sql-proxy.$$GOOS.$$GOARCH'
   - id: linux.386
-    name: "golang:1.20"
+    name: "golang:1.21"
     env:
       - "GOOS=linux"
       - "GOARCH=386"
@@ -38,7 +38,7 @@ steps:
       - "-c"
       - 'go build -ldflags "-X github.com/GoogleCloudPlatform/cloud-sql-proxy/v2/cmd.metadataString=$$GOOS.$$GOARCH" -o cloud-sql-proxy.$$GOOS.$$GOARCH'
   - id: linux.arm64
-    name: "golang:1.20"
+    name: "golang:1.21"
     env:
       - "GOOS=linux"
       - "GOARCH=arm64"
@@ -47,7 +47,7 @@ steps:
       - "-c"
       - 'go build -ldflags "-X github.com/GoogleCloudPlatform/cloud-sql-proxy/v2/cmd.metadataString=$$GOOS.$$GOARCH" -o cloud-sql-proxy.$$GOOS.$$GOARCH'
   - id: linux.arm
-    name: "golang:1.20"
+    name: "golang:1.21"
     env:
       - "GOOS=linux"
       - "GOARCH=arm"
@@ -56,7 +56,7 @@ steps:
       - "-c"
       - 'go build -ldflags "-X github.com/GoogleCloudPlatform/cloud-sql-proxy/v2/cmd.metadataString=$$GOOS.$$GOARCH" -o cloud-sql-proxy.$$GOOS.$$GOARCH'
   - id: darwin.amd64
-    name: "golang:1.20"
+    name: "golang:1.21"
     env:
       - "GOOS=darwin"
       - "GOARCH=amd64"
@@ -65,7 +65,7 @@ steps:
       - "-c"
       - 'go build -ldflags "-X github.com/GoogleCloudPlatform/cloud-sql-proxy/v2/cmd.metadataString=$$GOOS.$$GOARCH" -o cloud-sql-proxy.$$GOOS.$$GOARCH'
   - id: darwin.arm64
-    name: "golang:1.20"
+    name: "golang:1.21"
     env:
       - "GOOS=darwin"
       - "GOARCH=arm64"
@@ -74,7 +74,7 @@ steps:
       - "-c"
       - 'go build -ldflags "-X github.com/GoogleCloudPlatform/cloud-sql-proxy/v2/cmd.metadataString=$$GOOS.$$GOARCH" -o cloud-sql-proxy.$$GOOS.$$GOARCH'
   - id: windows.amd64
-    name: "golang:1.20"
+    name: "golang:1.21"
     env:
       - "GOOS=windows"
       - "GOARCH=amd64"
@@ -83,7 +83,7 @@ steps:
       - "-c"
       - 'go build -ldflags "-X github.com/GoogleCloudPlatform/cloud-sql-proxy/v2/cmd.metadataString=$$GOOS.$$GOARCH" -o cloud-sql-proxy.x64.exe'
   - id: windows.386
-    name: "golang:1.20"
+    name: "golang:1.21"
     env:
       - "GOOS=windows"
       - "GOARCH=386"