diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 867636db..25d533b4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,6 +37,7 @@ jobs:
           go install honnef.co/go/tools/cmd/staticcheck@v0.7.0
           go install mvdan.cc/gofumpt@v0.9.2
           go install github.com/securego/gosec/v2/cmd/gosec@v2.26.1
+          go install golang.org/x/tools/cmd/deadcode@v0.45.0
 
       - name: Vet
         run: go vet ./...
@@ -44,6 +45,15 @@ jobs:
       - name: Staticcheck
         run: '"$(go env GOPATH)/bin/staticcheck" ./...'
 
+      - name: Deadcode
+        run: |
+          output_file=$(mktemp)
+          "$(go env GOPATH)/bin/deadcode" -test ./... > "$output_file"
+          if [ -s "$output_file" ]; then
+            cat "$output_file"
+            exit 1
+          fi
+
       - name: Gofumpt
         run: |
           changed="$("$(go env GOPATH)/bin/gofumpt" -l .)"
diff --git a/go.mod b/go.mod
index ccc604ea..1b05f625 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/openclaw/discrawl
 
-go 1.26.3
+go 1.26.4
 
 require (
 	github.com/alecthomas/kong v1.15.0