diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a0ae641..741055e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,32 +1,30 @@
 name: CI
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
 
 jobs:
     build:
         name: Build
         runs-on: ubuntu-latest
         steps:
+            - name: Checkout repository
+              uses: actions/checkout@v4
 
             - name: Set up Go 1.x
-              uses: actions/setup-go@v2
+              uses: actions/setup-go@v5
               with:
                   go-version: ^1.13
               id: go
 
-            - name: Checkout repository
-              uses: actions/checkout@v2
-
-            - name: Set up cache
-              uses: actions/cache@v2
-              with:
-                path: ~/go/pkg/mod
-                key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-                restore-keys: |
-                  ${{ runner.os }}-go-
-
             - name: Get dependencies
               run: go get -v -t -d .
 
             - name: Build go
-              run: go build
\ No newline at end of file
+              run: go build