diff --git a/.github/workflows/4testing-build.yml b/.github/workflows/4testing-build.yml
index 138cd30..5b6deb1 100644
--- a/.github/workflows/4testing-build.yml
+++ b/.github/workflows/4testing-build.yml
@@ -47,25 +47,31 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - id: matrix
+        env:
+          BRANCH_NAME: ${{ github.ref_name }}
+          AMD64: ${{ github.event.inputs.amd64 }}
+          ARM64: ${{ github.event.inputs.arm64 }}
+          COMMUNITY: ${{ github.event.inputs.community }}
+          ENTERPRISE: ${{ github.event.inputs.enterprise }}
+          DEVELOPER: ${{ github.event.inputs.developer }}
         run: |
           set -ex
 
-          BRANCH_NAME=${GITHUB_REF#refs/heads/}
-          if ! [[ $BRANCH_NAME == develop || $BRANCH_NAME =~ hotfix || $BRANCH_NAME =~ release ]]; then
+          if ! [[ "$BRANCH_NAME" == develop || "$BRANCH_NAME" =~ hotfix || "$BRANCH_NAME" =~ release ]]; then
             echo "Wrong branch."
             exit 1
           fi
 
-          [ ${{ github.event.inputs.amd64 }} = true ] && PLATFORMS+=("amd64")
-          [ ${{ github.event.inputs.arm64 }} = true ] && PLATFORMS+=("arm64")
+          [ "${AMD64}" = true ] && PLATFORMS+=("amd64")
+          [ "${ARM64}" = true ] && PLATFORMS+=("arm64")
           if [ -z ${PLATFORMS} ]; then
             echo "None of the platforms are selected."
             exit 1
           fi
 
-          [ ${{ github.event.inputs.community }} = true ] && EDITIONS+=("community")
-          [ ${{ github.event.inputs.enterprise }} = true ] && EDITIONS+=("enterprise")
-          [ ${{ github.event.inputs.developer }} = true ] && EDITIONS+=("developer")
+          [ "${COMMUNITY}" = true ] && EDITIONS+=("community")
+          [ "${ENTERPRISE}" = true ] && EDITIONS+=("enterprise")
+          [ "${DEVELOPER}" = true ] && EDITIONS+=("developer")
           if [ -z ${EDITIONS} ]; then
             echo "None of the editions are selected."
             exit 1
@@ -102,12 +108,20 @@ jobs:
 
       - name: Build 4testing
         id: build-ds
+        env:
+          BRANCH_NAME: ${{ github.ref_name }}
+          AMD64: ${{ github.event.inputs.amd64 }}
+          ARM64: ${{ github.event.inputs.arm64 }}
+          BUILD_NUMBER: ${{ github.event.inputs.build }}
+          EDITION: ${{ matrix.edition }}
+          IMAGE: ${{ matrix.image }}
+          PACKAGE_BASEURL: ${{ secrets.REPO_BASEURL }}
         run: |
           set -eux
 
           ### ==>> At this step build variable declaration ###
 
-          case ${{ matrix.edition }} in
+          case "${EDITION}" in
             community)
               PRODUCT_EDITION=""
               ;;
@@ -119,23 +133,20 @@ jobs:
               ;;
           esac
 
-          [ ${{ github.event.inputs.amd64 }} = true ] && PLATFORMS+=("amd64")
-          [ ${{ github.event.inputs.arm64 }} = true ] && PLATFORMS+=("arm64")
+          [ "${AMD64}" = true ] && PLATFORMS+=("amd64")
+          [ "${ARM64}" = true ] && PLATFORMS+=("arm64")
           PLATFORM=$(echo ${PLATFORMS[*]/#/linux/} | tr ' ' ',')
 
-          BRANCH_NAME=${GITHUB_REF#refs/heads/}
-          if [ $BRANCH_NAME = develop ]; then
+          if [ "$BRANCH_NAME" = develop ]; then
             BUILD_CHANNEL=nightly
             PRODUCT_VERSION=99.99.99
-          elif [[ $BRANCH_NAME =~ hotfix || $BRANCH_NAME =~ release ]]; then
+          elif [[ "$BRANCH_NAME" =~ hotfix || "$BRANCH_NAME" =~ release ]]; then
             BUILD_CHANNEL=test
             PRODUCT_VERSION=${BRANCH_NAME#*/v}
           fi
-          BUILD_NUMBER=${{ github.event.inputs.build }}
 
           export PRODUCT_EDITION
           export PACKAGE_VERSION=${PRODUCT_VERSION}-${BUILD_NUMBER}
-          export PACKAGE_BASEURL=${{ secrets.REPO_BASEURL }}
           export BUILD_CHANNEL
           export PLATFORM
           export DOCKERFILE=Dockerfile
@@ -144,7 +155,7 @@ jobs:
 
           ### ==>> Build and push images at this step ###
 
-          docker buildx bake -f docker-bake.hcl ${{ matrix.image }} --push
+          docker buildx bake -f docker-bake.hcl "${IMAGE}" --push
           echo "DONE: Build success"
 
           ### Set output for Zap scanner
@@ -165,10 +176,11 @@ jobs:
           VERSION: ${{ steps.build-ds.outputs.version }}
           BRANCH: ${{ steps.build-ds.outputs.branch }}
           GITHUB_TOKEN: ${{ secrets.TOKEN }}
+          REPO: ${{ github.repository }}
         run: |
             gh workflow run zap-ds.yaml \
-                 --repo ${{ github.repository }} \
-                 -f branch=${BRANCH} \
-                 -f version=${VERSION}
+                 --repo "${REPO}" \
+                 -f branch="${BRANCH}" \
+                 -f version="${VERSION}"
         shell: bash
 
diff --git a/.github/workflows/stable-build.yml b/.github/workflows/stable-build.yml
index fea89d2..01e80f7 100644
--- a/.github/workflows/stable-build.yml
+++ b/.github/workflows/stable-build.yml
@@ -17,7 +17,9 @@ on:
 
 env:
   COMPANY_NAME: "onlyoffice"
-  PRODUCT_NAME: "documentserver" 
+  PRODUCT_NAME: "documentserver"
+  VERSION: ${{ github.event.inputs.tag }}
+  RELEASE_NUMBER: ${{ github.event.inputs.release_number }}
 
 jobs:
   build:
@@ -45,18 +47,18 @@ jobs:
           password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
 
       - name: Build documentserver-release
+        env:
+          TARGET: ${{ matrix.images }}
+          PRODUCT_EDITION: ${{ matrix.edition }}
         run: |
           set -eux
-          VERSION=${{ github.event.inputs.tag }}
-          RELEASE_NUMBER=${{ github.event.inputs.release_number }}
-          PRODUCT_EDITION=${{ matrix.edition }}
           TESTING_IMAGE=${COMPANY_NAME}/4testing-${PRODUCT_NAME}${PRODUCT_EDITION}
             export PRODUCT_EDITION
             export PULL_TAG=${VERSION}
             export TAG=${VERSION%.*}.${RELEASE_NUMBER}
             export SHORTER_TAG=${VERSION%.*}
             export SHORTEST_TAG=${VERSION%.*.*}
-            docker buildx bake -f docker-bake.hcl ${{ matrix.images }} --push
+            docker buildx bake -f docker-bake.hcl "${TARGET}" --push
             echo "DONE: Build success >> exit with 0"
             exit 0
         shell: bash
@@ -88,14 +90,14 @@ jobs:
           password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
 
       - name: build image
+        env:
+          TARGET: ${{ matrix.images }}
+          PRODUCT_EDITION: ${{ matrix.edition }}
         run: |
           set -eux
-          VERSION=${{ github.event.inputs.tag }}
-          RELEASE_NUMBER=${{ github.event.inputs.release_number }}
           export PULL_TAG=${VERSION%.*}.${RELEASE_NUMBER}
-          export PRODUCT_EDITION=${{ matrix.edition }}
           export TAG=${VERSION%.*}.${RELEASE_NUMBER}
-          docker buildx bake -f docker-bake.hcl ${{ matrix.images }} --push
+          docker buildx bake -f docker-bake.hcl "${TARGET}" --push
         shell: bash
 
   build-ucs-ubuntu20:
@@ -122,12 +124,11 @@ jobs:
           password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
 
       - name: build UCS
+        env:
+          PACKAGE_BASEURL: ${{ secrets.REPO_BASEURL }}
+          PRODUCT_EDITION: ${{ matrix.edition }}
         run: |
            set -eux
-           VERSION=${{ github.event.inputs.tag }}
-           RELEASE_NUMBER=${{ github.event.inputs.release_number }}
-           export PRODUCT_EDITION=${{ matrix.edition }}
-           export PACKAGE_BASEURL=${{ secrets.REPO_BASEURL }}
            export DOCKERFILE=Dockerfile
            export BASE_VERSION=20.04
            export PG_VERSION=12