diff --git a/.github/workflows/checkstyle.yaml b/.github/workflows/checkstyle.yaml
index 1707f5bb21db..8dcd5047a748 100644
--- a/.github/workflows/checkstyle.yaml
+++ b/.github/workflows/checkstyle.yaml
@@ -1,36 +1,36 @@
 name: checkstyle
 
 on:
   push:
   pull_request:
 
 jobs:
   checkstyle:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
     - uses: actions/checkout@v2
       with:
         ref: ${{ github.event.pull_request.head.sha }}
     - name: Install dependencies
       run: |
         sudo apt-get update
         sudo apt-get install --yes -qq build-essential autoconf libtool gawk alien fakeroot linux-headers-$(uname -r)
         sudo apt-get install --yes -qq zlib1g-dev uuid-dev libattr1-dev libblkid-dev libselinux-dev libudev-dev libssl-dev python-dev python-setuptools python-cffi python3 python3-dev python3-setuptools python3-cffi
         # packages for tests
         sudo apt-get install --yes -qq parted lsscsi ksh attr acl nfs-kernel-server fio
         sudo apt-get install --yes -qq mandoc cppcheck pax-utils devscripts abigail-tools
         sudo -E pip --quiet install flake8
     - name: Prepare
       run: |
         sh ./autogen.sh
         ./configure
         make -j$(nproc)
     - name: Checkstyle
       run: |
         make checkstyle
     - name: Lint
       run: |
         make lint
     - name: CheckABI
       run: |
         make checkabi