diff --git a/.github/workflows/backend.yml b/.github/workflows/backend.yml
index d87e3212..df29128e 100644
--- a/.github/workflows/backend.yml
+++ b/.github/workflows/backend.yml
@@ -12,7 +12,7 @@ concurrency:
 jobs:
   generateMatrix:
     name: "Generate matrix from cabal"
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
@@ -21,7 +21,7 @@ jobs:
         uses: kleidukos/get-tested@v0.1.7.1
         with:
           cabal-file: flora.cabal
-          ubuntu-version: "latest"
+          ubuntu-version: "22.04"
           version: 0.1.7.1
 
   Backend_tests:
diff --git a/.github/workflows/changelog.yaml b/.github/workflows/changelog.yaml
index c95388f9..d6cfb10b 100644
--- a/.github/workflows/changelog.yaml
+++ b/.github/workflows/changelog.yaml
@@ -5,7 +5,7 @@ on:
       - synchronize
 jobs:
   lint-changelog:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout code
         uses: "actions/checkout@v4"
diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index f7dab565..55ce1524 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -1,16 +1,16 @@
 name: Publish Docker Image
 
-on: 
+on:
   push:
     branches: ["development"]
     paths:
-      - Dockerfile 
+      - Dockerfile
       - docker-compose.yml
       - scripts/.zshrc
 
 jobs:
   publish-hello-docker-image:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Login to GitHub Container Registry
diff --git a/.github/workflows/duplicate-indexes.yaml b/.github/workflows/duplicate-indexes.yaml
index a4148b11..ac7973dc 100644
--- a/.github/workflows/duplicate-indexes.yaml
+++ b/.github/workflows/duplicate-indexes.yaml
@@ -12,7 +12,7 @@ concurrency:
 jobs:
   generateMatrix:
     name: "Generate matrix from cabal"
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
@@ -21,7 +21,7 @@ jobs:
         uses: kleidukos/get-tested@v0.1.7.1
         with:
           cabal-file: flora.cabal
-          ubuntu-version: "latest"
+          ubuntu-version: "22.04"
           version: 0.1.7.1
 
   duplicate-index-check:
diff --git a/.github/workflows/frontend.yml b/.github/workflows/frontend.yml
index f6028947..f8a706c0 100644
--- a/.github/workflows/frontend.yml
+++ b/.github/workflows/frontend.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   Frontend_tests:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v4
 
diff --git a/.github/workflows/linting.yml b/.github/workflows/linting.yml
index ccc9eecb..8c730a0e 100644
--- a/.github/workflows/linting.yml
+++ b/.github/workflows/linting.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   fourmolu:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v4
 
@@ -20,7 +20,7 @@ jobs:
           app/**/*.hs
 
   hlint:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v4
 
diff --git a/.github/workflows/missing-fk-indexes.yml b/.github/workflows/missing-fk-indexes.yml
index ab347e53..f185da40 100644
--- a/.github/workflows/missing-fk-indexes.yml
+++ b/.github/workflows/missing-fk-indexes.yml
@@ -12,7 +12,7 @@ concurrency:
 jobs:
   generateMatrix:
     name: "Generate matrix from cabal"
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
@@ -21,7 +21,7 @@ jobs:
         uses: kleidukos/get-tested@v0.1.7.1
         with:
           cabal-file: flora.cabal
-          ubuntu-version: "latest"
+          ubuntu-version: "22.04"
           version: 0.1.7.1
 
   missing-fk-index-check:
diff --git a/.github/workflows/setup.sh b/.github/workflows/setup.sh
index a67201bb..bd4d676e 100755
--- a/.github/workflows/setup.sh
+++ b/.github/workflows/setup.sh
@@ -3,7 +3,7 @@
 sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
 wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
 sudo apt -y update
-sudo apt -y install postgresql-14 g++ mcpp libffi7 llvm zlib1g-dev
+sudo apt -y install postgresql-16 g++ mcpp libffi7 llvm zlib1g-dev
 
 wget https://github.com/souffle-lang/souffle/releases/download/2.2/x86_64-ubuntu-2004-souffle-2.2-Linux.deb
 sudo dpkg -i ./x86_64-ubuntu-2004-souffle-2.2-Linux.deb
diff --git a/.github/workflows/test-docker-image.yml b/.github/workflows/test-docker-image.yml
index c74464d9..06ba5aa3 100644
--- a/.github/workflows/test-docker-image.yml
+++ b/.github/workflows/test-docker-image.yml
@@ -1,16 +1,16 @@
 name: Build Docker Image
 
-on: 
+on:
   pull_request:
     branches: ["main", "development"]
     paths:
-      - Dockerfile 
+      - Dockerfile
       - docker-compose.yml
       - scripts/.zshrc
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - name: Build the Docker image