diff --git a/.github/workflows/packing.yml b/.github/workflows/packing.yml
index 1e8a9b49..1c10672a 100644
--- a/.github/workflows/packing.yml
+++ b/.github/workflows/packing.yml
@@ -470,12 +470,8 @@ jobs:
 
       matrix:
         target:
-        - os: debian
-          dist: bullseye # 11
         - os: debian
           dist: bookworm # 12
-        - os: ubuntu
-          dist: focal # 20.04
         - os: ubuntu
           dist: jammy # 22.04
         - os: ubuntu
@@ -569,16 +565,10 @@ jobs:
 
       matrix:
         target:
-        - os: ubuntu
-          dist: focal # 20.04
         - os: ubuntu
           dist: jammy # 22.04
         - os: ubuntu
           dist: noble # 24.04
-        - os: debian
-          dist: buster # 10
-        - os: debian
-          dist: bullseye # 11
         - os: debian
           dist: bookworm # 12
 
diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 31c85632..117dad65 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -64,11 +64,6 @@ jobs:
           tt version
           tt init
 
-      # Installation of the specific CMake version is a hotfix for
-      # https://github.com/tarantool/checks/issues/64
-      - name: Install old CMake
-        run: pip3 install cmake==3.15.3
-
       - name: Install tarantool ${{ matrix.tarantool }}
         if: matrix.tarantool != 'master'
         uses: tarantool/setup-tarantool@v3
@@ -192,7 +187,6 @@ jobs:
           source tarantool-enterprise/env.sh
           curl -L https://tarantool.io/release/3/installer.sh | bash
           sudo apt install -y tt
-          pip3 install cmake==3.15.3
           tt rocks install crud TARANTOOL_DIR=$PWD/tarantool-enterprise
 
       - name: Run tests
@@ -243,11 +237,6 @@ jobs:
       - name: Install the package with pip
         run: pip3 install git+$GITHUB_SERVER_URL/$GITHUB_REPOSITORY@$GITHUB_REF
 
-      # Installation of the specific CMake version is a hotfix for
-      # https://github.com/tarantool/checks/issues/64
-      - name: Install old CMake
-        run: pip3 install cmake==3.15.3
-
       - name: Install test requirements
         run: pip3 install -r requirements-test.txt
 
@@ -255,7 +244,6 @@ jobs:
         run: |
           curl -L https://tarantool.io/release/3/installer.sh | bash
           sudo apt install -y tt
-          pip3 install cmake==3.15.3
           tt rocks install crud
 
       - name: Run tests