diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 97fefd1..8ff5d3f 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -18,7 +18,7 @@ jobs:
       - name: Setup golangci-lint
         uses: golangci/golangci-lint-action@v9
         with:
-          version: v2.13
+          version: v2.13.2
           args: --verbose
 
       - uses: hadolint/hadolint-action@v3.5.0
@@ -30,7 +30,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        go: ["1.25"]
+        go: ["1.26", "1.27"]
         include:
           - os: ubuntu-latest
             go-build: ~/.cache/go-build
@@ -55,9 +55,9 @@ jobs:
           path: |
             ${{ matrix.go-build }}
             ~/go/pkg/mod
-          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          key: ${{ runner.os }}-go-${{ matrix.go }}-${{ hashFiles('**/go.sum') }}
           restore-keys: |
-            ${{ runner.os }}-go-
+            ${{ runner.os }}-go-${{ matrix.go }}-
       - name: Run Tests
         run: |
           go test -race -cover -coverprofile=coverage.out ./...
diff --git a/CLAUDE.md b/CLAUDE.md
index 289e335..22bbab2 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -21,7 +21,7 @@ go test -v -run TestName ./...
 ### Linting
 
 ```bash
-# Run golangci-lint (requires golangci-lint v2.6)
+# Run golangci-lint (requires golangci-lint v2.13)
 golangci-lint run --verbose
 
 # Check Dockerfile
@@ -128,7 +128,7 @@ go run .
 
 ## Code Style & Standards
 
-- Go version: 1.25
+- Go version: 1.26
 - Linter configuration in `.golangci.yml` includes: gosec, govet, staticcheck, errcheck, and formatting tools (gofmt, gofumpt, goimports, golines)
 - Security scanning via gosec is enabled; intentional security exceptions are marked with `#nosec` comments
 - All tests should include race detection (`-race` flag)
diff --git a/Dockerfile b/Dockerfile
index 51cf33f..c09e076 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.25-alpine AS builder
+FROM golang:1.26-alpine AS builder
 
 # Build arguments for version injection
 ARG VERSION=dev
diff --git a/go.mod b/go.mod
index 15ea9bf..c5b9fab 100644
--- a/go.mod
+++ b/go.mod
@@ -1,10 +1,10 @@
 module github.com/appleboy/LLM-action
 
-go 1.25.0
+go 1.26.0
 
 require (
-	github.com/appleboy/com v1.2.0
-	github.com/sashabaranov/go-openai v1.41.2
+	github.com/appleboy/com v1.2.1
+	github.com/sashabaranov/go-openai v1.42.1
 )
 
 require github.com/yassinebenaid/godump v0.11.1
diff --git a/go.sum b/go.sum
index 77269e0..fe3cc94 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,6 @@
-github.com/appleboy/com v1.2.0 h1:3jyA+yVofe/uzPHHa7Xrsj7rnDy1sZn/8pYHdzHB3GQ=
-github.com/appleboy/com v1.2.0/go.mod h1:XK2kV+JWz/gkzsDPotNJL+aS6XCy5GNlbiTWGvIhqIU=
-github.com/sashabaranov/go-openai v1.41.2 h1:vfPRBZNMpnqu8ELsclWcAvF19lDNgh1t6TVfFFOPiSM=
-github.com/sashabaranov/go-openai v1.41.2/go.mod h1:lj5b/K+zjTSFxVLijLSTDZuP7adOgerWeFyZLUhAKRg=
+github.com/appleboy/com v1.2.1 h1:4bqaVFSxy1Q3mRotTIcF8TLryTet0652iNDNVV16skM=
+github.com/appleboy/com v1.2.1/go.mod h1:KKYavyU5ejOp8c4vW+daKMf6Dw2DxE9IjqmWAhy0huo=
+github.com/sashabaranov/go-openai v1.42.1 h1:9nK2UgDVVSIyoEUNDeWqu3Ttj8EqCO6FT8HK0Cv8VEo=
+github.com/sashabaranov/go-openai v1.42.1/go.mod h1:lj5b/K+zjTSFxVLijLSTDZuP7adOgerWeFyZLUhAKRg=
 github.com/yassinebenaid/godump v0.11.1 h1:SPujx/XaYqGDfmNh7JI3dOyCUVrG0bG2duhO3Eh2EhI=
 github.com/yassinebenaid/godump v0.11.1/go.mod h1:dc/0w8wmg6kVIvNGAzbKH1Oa54dXQx8SNKh4dPRyW44=
diff --git a/main.go b/main.go
index 493d225..30c5085 100644
--- a/main.go
+++ b/main.go
@@ -151,7 +151,7 @@ func buildChatRequest(
 		// max_completion_tokens so existing configs keep working.
 		req.MaxCompletionTokens = config.MaxTokens
 	default:
-		req.MaxTokens = config.MaxTokens
+		req.MaxTokens = config.MaxTokens //nolint:staticcheck // Preserve max_tokens for compatible services and non-reasoning models.
 	}
 
 	if isReasoningModel(config.Model) {
diff --git a/main_test.go b/main_test.go
index 169a1fa..9de1452 100644
--- a/main_test.go
+++ b/main_test.go
@@ -88,7 +88,8 @@ func TestBuildChatRequest(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			req := buildChatRequest(tt.config, messages, nil)
 
-			if req.MaxTokens != tt.expectedMaxTokens {
+			if req.MaxTokens != tt.expectedMaxTokens { //nolint:staticcheck // Verify legacy max_tokens compatibility.
+				//nolint:staticcheck // Report the legacy field.
 				t.Errorf("MaxTokens = %d, want %d", req.MaxTokens, tt.expectedMaxTokens)
 			}
 			if req.MaxCompletionTokens != tt.expectedMaxCompletionTokens {