diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 88ed0bd4f4..1f2339534b 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -15,7 +15,7 @@ on:
 jobs:
   Lint-Style:
     name: Lint & check code style
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - name: Setup Nix Environment
@@ -30,7 +30,7 @@ jobs:
 
   Test-Nix:
     name: Test (Nix)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     defaults:
       run:
         # Hack for enabling color output, see:
@@ -66,7 +66,7 @@ jobs:
       matrix:
         pgVersion: [9.6, 10, 11, 12, 13, 14, 15]
     name: Test PG ${{ matrix.pgVersion }} (Nix)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     defaults:
       run:
         # Hack for enabling color output, see:
@@ -90,7 +90,7 @@ jobs:
 
   Test-Memory-Nix:
     name: Test memory (Nix)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - name: Setup Nix Environment
@@ -103,7 +103,7 @@ jobs:
 
   Build-Static-Nix:
     name: Build Linux static (Nix)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - name: Setup Nix Environment
@@ -146,21 +146,21 @@ jobs:
       matrix:
         include:
           - name: Linux
-            runs-on: ubuntu-latest
+            runs-on: ubuntu-22.04
             cache: |
               ~/.stack
               .stack-work
             artifact: postgrest-ubuntu-x64
 
           - name: MacOS
-            runs-on: macos-latest
+            runs-on: macos-12
             cache: |
               ~/.stack
               .stack-work
             artifact: postgrest-macos-x64
 
           - name: Windows
-            runs-on: windows-latest
+            runs-on: windows-2022
             cache: |
               ~\AppData\Roaming\stack
               ~\AppData\Local\Programs\stack
@@ -193,7 +193,7 @@ jobs:
 
   Get-FreeBSD-CirrusCI:
     name: Get FreeBSD build from CirrusCI
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - name: Get FreeBSD executable from CirrusCI
@@ -215,7 +215,7 @@ jobs:
         ghc: ['8.10.7', '9.2.4']
       fail-fast: false
     name: Build Linux (Cabal, GHC ${{ matrix.ghc }})
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - name: ghcup
@@ -242,7 +242,7 @@ jobs:
   Build-Cabal-Arm:
     name: Build aarch64 (Cabal)
     if: "${{ github.event_name == 'push' }}"
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     outputs:
       remotepath: ${{ steps.Remote-Dir.outputs.remotepath }}
     env:
@@ -298,7 +298,7 @@ jobs:
   Prepare-Release:
     name: Prepare release
     if: startsWith(github.ref, 'refs/tags/v')
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     needs:
       - Lint-Style
       - Test-Nix
@@ -360,7 +360,7 @@ jobs:
     name: Release on GitHub
     permissions:
       contents: write
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     needs: Prepare-Release
     env:
       VERSION: ${{ needs.Prepare-Release.outputs.version }}
@@ -419,7 +419,7 @@ jobs:
 
   Release-Docker:
     name: Release on Docker Hub
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     needs:
       - Build-Cabal-Arm
       - Prepare-Release
@@ -487,7 +487,7 @@ jobs:
       - Build-Cabal-Arm
       - Release-Docker
     if: ${{ always() && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v') || startsWith(github.ref, 'refs/heads/rel-')) }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     env:
       REMOTE_DIR: ${{ needs.Build-Cabal-Arm.outputs.remotepath }}
     steps:
diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index b9d2ec4ef6..ce5dbe6386 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -13,7 +13,7 @@ on:
 jobs:
   build:
     name: Build docs
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
     - uses: cachix/install-nix-action@8887e596b4ee1134dae06b98d573bd674693f47c # v26
@@ -22,7 +22,7 @@ jobs:
 
   spellcheck:
     name: Run spellcheck
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
     - uses: cachix/install-nix-action@8887e596b4ee1134dae06b98d573bd674693f47c # v26
@@ -31,7 +31,7 @@ jobs:
 
   dictcheck:
     name: Run dictcheck
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
       - uses: cachix/install-nix-action@8887e596b4ee1134dae06b98d573bd674693f47c # v26
@@ -41,7 +41,7 @@ jobs:
   linkcheck:
     name: Run linkcheck
     if: github.base_ref == 'main'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
     - uses: cachix/install-nix-action@8887e596b4ee1134dae06b98d573bd674693f47c # v26
diff --git a/.github/workflows/loadtest.yaml b/.github/workflows/loadtest.yaml
index 73d7f5ff8a..c5085075c6 100644
--- a/.github/workflows/loadtest.yaml
+++ b/.github/workflows/loadtest.yaml
@@ -13,7 +13,7 @@ on:
 jobs:
   Loadtest-Nix:
     name: Loadtest (Nix)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
         with:
diff --git a/.github/workflows/report.yaml b/.github/workflows/report.yaml
index 065a4d230a..21466b4388 100644
--- a/.github/workflows/report.yaml
+++ b/.github/workflows/report.yaml
@@ -11,7 +11,7 @@ jobs:
     name: Loadtest
     permissions:
       checks: write
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     if: ${{ github.event.workflow_run.conclusion == 'success' }}
     steps:
       - name: Download from Artifacts