diff --git a/.forgejo/workflows/build.yml b/.forgejo/workflows/build.yml
index f5ceb9e..e6e0f72 100644
--- a/.forgejo/workflows/build.yml
+++ b/.forgejo/workflows/build.yml
@@ -25,7 +25,7 @@ jobs:
     steps:
       - run: cat /etc/os-release
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
         with:
           show-progress: false
 
@@ -44,7 +44,7 @@ jobs:
 
       - run: ps axf
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
         with:
           show-progress: false
           fetch-depth: 0
@@ -85,7 +85,7 @@ jobs:
     steps:
       - run: cat /etc/os-release
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
         with:
           show-progress: false
           fetch-depth: 0
@@ -151,7 +151,7 @@ jobs:
     if: ${{ github.ref_type == 'tag' }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
         with:
           show-progress: false