diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..04ffcc1
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,63 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    container:
+      image: golang:1.18
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run golangci-lint
+        uses: golangci/golangci-lint-action@v6
+        with:
+          version: v1.60
+
+  test:
+    runs-on: ubuntu-latest
+    container:
+      image: golang:1.18
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run tests
+        run: |
+          set -eux
+          go test -v -coverprofile=coverage.txt -covermode=atomic ./...
+
+      - name: Upload coverage
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage
+          path: coverage.txt
+
+  publish:
+    needs: test
+    runs-on: ubuntu-latest
+    container:
+      image: golang:1.18
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Download coverage
+        uses: actions/download-artifact@v4
+        with:
+          name: coverage
+          path: .
+
+      - name: Publish coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          file: ./coverage.txt
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
deleted file mode 100644
index 5a8f92a..0000000
--- a/.github/workflows/main.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: main
-on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Install Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: 1.18
-
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Run golangci-lint
-        uses: golangci/golangci-lint-action@v6
-        with:
-          version: v1.60
-
-      - name: Run tests
-        run: |
-          go test -coverprofile=coverage.txt -covermode=atomic ./...
-
-      - name: Publish coverage
-        uses: codecov/codecov-action@v4
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          file: ./coverage.txt