diff --git a/.github/workflows/backend-api-tests.yml b/.github/workflows/backend-api-tests.yml
index 71fb809fb..9db6d4959 100644
--- a/.github/workflows/backend-api-tests.yml
+++ b/.github/workflows/backend-api-tests.yml
@@ -11,17 +11,19 @@ on:
 
 env:
   GITHUB_WORKFLOW: github_actions
+  PYTHON_VERSION: "3.12"
+  UBUNTU_VERSION: "ubuntu-24.04"
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ${{ env.UBUNTU_VERSION }}
     env:
       backend-directory: ./backend
 
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.11"]
+        python-version: ["${{ env.PYTHON_VERSION }}"]
 
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/backend-coverage.yaml b/.github/workflows/backend-coverage.yaml
index 9d615ff1f..15d2f7350 100644
--- a/.github/workflows/backend-coverage.yaml
+++ b/.github/workflows/backend-coverage.yaml
@@ -8,16 +8,19 @@ on:
 
 env:
   GITHUB_WORKFLOW: github_actions
+  POSTGRES_VERSION: "16"
+  UBUNTU_VERSION: "ubuntu-24.04"
+  PYTHON_VERSION: "3.12"
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ${{ env.UBUNTU_VERSION }}
     env:
       backend-directory: ./backend
 
     services:
       postgres:
-        image: postgres:14.1
+        image: postgres:${{ env.POSTGRES_VERSION }}
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres # test credential
@@ -28,7 +31,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.11"]
+        python-version: ["${{ env.PYTHON_VERSION }}"]
 
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/backend-linters.yaml b/.github/workflows/backend-linters.yaml
index 31d0a1dd4..f18a733d7 100644
--- a/.github/workflows/backend-linters.yaml
+++ b/.github/workflows/backend-linters.yaml
@@ -7,17 +7,19 @@ on:
 
 env:
   GITHUB_WORKFLOW: github_actions
+  PYTHON_VERSION: "3.12"
+  UBUNTU_VERSION: "ubuntu-24.04"
 
 jobs:
   ruff:
-    runs-on: ubuntu-latest
+    runs-on: ${{ env.UBUNTU_VERSION }}
     env:
       working-directory: ./backend
 
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.11"]
+        python-version: ["${{ env.PYTHON_VERSION }}"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/backend-migrations-check.yaml b/.github/workflows/backend-migrations-check.yaml
index 049de81e1..76fb6b44d 100644
--- a/.github/workflows/backend-migrations-check.yaml
+++ b/.github/workflows/backend-migrations-check.yaml
@@ -11,15 +11,17 @@ env:
   backend-directory: ./backend
   enterprise-backend-directory: ./enterprise/backend
   enterprise-backend-settings-module: enterprise_core.settings
+  UBUNTU_VERSION: "ubuntu-24.04"
+  PYTHON_VERSION: "3.12"
 
 jobs:
   migrations-check:
-    runs-on: ubuntu-20.04
+    runs-on: ${{ env.UBUNTU_VERSION }}
 
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.11"]
+        python-version: ["${{ env.PYTHON_VERSION }}"]
 
     steps:
       - uses: actions/checkout@v4
@@ -58,12 +60,12 @@ jobs:
           poetry run python manage.py makemigrations --check --dry-run --verbosity=3
 
   enterprise-migrations-check:
-    runs-on: ubuntu-20.04
+    runs-on: ${{ env.UBUNTU_VERSION }}
 
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.11"]
+        python-version: ["${{ env.PYTHON_VERSION }}"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/docker-build-and-push-ee.yml b/.github/workflows/docker-build-and-push-ee.yml
index 16e178e01..0062393c0 100644
--- a/.github/workflows/docker-build-and-push-ee.yml
+++ b/.github/workflows/docker-build-and-push-ee.yml
@@ -6,9 +6,12 @@ on:
       - "v*"
   workflow_dispatch:
 
+env:
+  UBUNTU_VERSION: "ubuntu-24.04"
+
 jobs:
   build-and-push:
-    runs-on: ubuntu-latest
+    runs-on: ${{ env.UBUNTU_VERSION }}
     permissions:
       contents: read
       packages: write
diff --git a/.github/workflows/docker-build-and-push.yml b/.github/workflows/docker-build-and-push.yml
index 8d1a71e44..4f3682f09 100644
--- a/.github/workflows/docker-build-and-push.yml
+++ b/.github/workflows/docker-build-and-push.yml
@@ -6,9 +6,12 @@ on:
       - "v*"
   workflow_dispatch:
 
+env:
+  UBUNTU_VERSION: "ubuntu-24.04"
+
 jobs:
   build-and-push:
-    runs-on: ubuntu-latest
+    runs-on: ${{ env.UBUNTU_VERSION }}
     permissions:
       contents: read
       packages: write
diff --git a/.github/workflows/frontend-coverage.yaml b/.github/workflows/frontend-coverage.yaml
index 129f34ba3..68668dae7 100644
--- a/.github/workflows/frontend-coverage.yaml
+++ b/.github/workflows/frontend-coverage.yaml
@@ -8,17 +8,19 @@ on:
 
 env:
   GITHUB_WORKFLOW: github_actions
+  UBUNTU_VERSION: "ubuntu-24.04"
+  NODE_VERSION: "22"
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ${{ env.UBUNTU_VERSION }}
     env:
       working-directory: ./frontend
 
     strategy:
       max-parallel: 4
       matrix:
-        node-version: ["20"]
+        node-version: ["${{ env.NODE_VERSION }}"]
 
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/frontend-linters.yaml b/.github/workflows/frontend-linters.yaml
index 2123fb8d4..e5015b6d3 100644
--- a/.github/workflows/frontend-linters.yaml
+++ b/.github/workflows/frontend-linters.yaml
@@ -7,10 +7,12 @@ on:
 
 env:
   GITHUB_WORKFLOW: github_actions
+  UBUNTU_VERSION: "ubuntu-24.04"
+  NODE_VERSION: "22"
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ${{ env.UBUNTU_VERSION }}
     env:
       working-directory: ./frontend
       PUBLIC_BACKEND_API_URL: "http://127.0.0.1:8000/api"
@@ -18,7 +20,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        node-version: ["20"]
+        node-version: ["${{ env.NODE_VERSION }}"]
 
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/frontend-unit-tests.yml b/.github/workflows/frontend-unit-tests.yml
index d82135c5f..163aedca5 100644
--- a/.github/workflows/frontend-unit-tests.yml
+++ b/.github/workflows/frontend-unit-tests.yml
@@ -7,17 +7,19 @@ on:
 
 env:
   GITHUB_WORKFLOW: github_actions
+  UBUNTU_VERSION: "ubuntu-24.04"
+  NODE_VERSION: "22"
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ${{ env.UBUNTU_VERSION }}
     env:
       working-directory: ./frontend
 
     strategy:
       max-parallel: 4
       matrix:
-        node-version: ["20"]
+        node-version: ["${{ env.NODE_VERSION }}"]
 
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/functional-tests.yml b/.github/workflows/functional-tests.yml
index c28629ba8..7986a906f 100644
--- a/.github/workflows/functional-tests.yml
+++ b/.github/workflows/functional-tests.yml
@@ -16,14 +16,17 @@ env:
   enterprise-frontend-build-directory: ./enterprise/frontend/.build/frontend
   enterprise-backend-settings-module: enterprise_core.settings
   DEBUG: pw:webserver
+  POSTGRES_VERSION: "16"
+  UBUNTU_VERSION: "ubuntu-24.04"
+  PYTHON_VERSION: "3.12"
 
 jobs:
   functional-tests:
-    runs-on: ubuntu-20.04
+    runs-on: ${{ env.UBUNTU_VERSION }}
 
     services:
       postgres:
-        image: postgres:14.1
+        image: postgres:${{ env.POSTGRES_VERSION }}
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres # test credential
@@ -37,7 +40,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.11"]
+        python-version: ["${{ env.PYTHON_VERSION }}"]
         playwright-browser: ["chromium"]
 
     steps:
@@ -124,11 +127,11 @@ jobs:
           retention-days: 5
 
   enterprise-functional-tests:
-    runs-on: ubuntu-20.04
+    runs-on: ${{ env.UBUNTU_VERSION }}
 
     services:
       postgres:
-        image: postgres:14.12
+        image: postgres:${{ env.POSTGRES_VERSION }}
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres
@@ -142,7 +145,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.11"]
+        python-version: ["${{ env.PYTHON_VERSION }}"]
         playwright-browser: ["chromium"]
 
     steps:
diff --git a/.github/workflows/startup-tests.yml b/.github/workflows/startup-tests.yml
index 81d4a12f7..21466a496 100644
--- a/.github/workflows/startup-tests.yml
+++ b/.github/workflows/startup-tests.yml
@@ -111,7 +111,7 @@ jobs:
           retention-days: 5
 
   startup-docker-compose-test:
-    runs-on: ubuntu-24.04
+    runs-on: ${{ env.UBUNTU_VERSION }}
     env:
       COMPOSE_TEST: True
     steps:
@@ -158,11 +158,11 @@ jobs:
           fi
 
   enterprise-startup-functional-test:
-    runs-on: ubuntu-24.04
+    runs-on: ${{ env.UBUNTU_VERSION }}
 
     services:
       postgres:
-        image: postgres:16
+        image: postgres:${{ env.POSTGRES_VERSION }}
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres
@@ -173,7 +173,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.12"]
+        python-version: ["${{ env.PYTHON_VERSION }}"]
 
     steps:
       - uses: actions/checkout@v4
@@ -249,7 +249,7 @@ jobs:
           retention-days: 5
 
   enterprise-startup-docker-compose-test:
-    runs-on: ubuntu-24.04
+    runs-on: ${{ env.UBUNTU_VERSION }}
     env:
       COMPOSE_TEST: True
     steps:
diff --git a/.github/workflows/version-change-check.yml b/.github/workflows/version-change-check.yml
index 50c039521..cff227461 100644
--- a/.github/workflows/version-change-check.yml
+++ b/.github/workflows/version-change-check.yml
@@ -1,11 +1,16 @@
 name: Version change checker
+
 on:
   pull_request:
     branches: [main]
     types: [opened]
+
+env:
+  UBUNTU_VERSION: "ubuntu-24.04"
+
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ${{ env.UBUNTU_VERSION }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v3