diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index acef34200..3a10a611f 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -6,7 +6,7 @@ name: Execute code coverage
 
 jobs:
   nightly-coverage:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/flaky.yml b/.github/workflows/flaky.yml
index 3ba11fe77..8d34da4d9 100644
--- a/.github/workflows/flaky.yml
+++ b/.github/workflows/flaky.yml
@@ -5,7 +5,7 @@ on:
 
 jobs:
   flaky:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
 
     steps:
     - uses: actions/checkout@v3
diff --git a/.github/workflows/publish-binaries.yml b/.github/workflows/publish-binaries.yml
index 95088b1ef..d07809df8 100644
--- a/.github/workflows/publish-binaries.yml
+++ b/.github/workflows/publish-binaries.yml
@@ -38,9 +38,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-20.04, macos-latest, windows-latest]
+        os: [ubuntu-18.04, macos-latest, windows-latest]
         include:
-          - os: ubuntu-20.04
+          - os: ubuntu-18.04
             artifact_name: meilisearch
             asset_name: meilisearch-linux-amd64
           - os: macos-latest
@@ -77,7 +77,7 @@ jobs:
       matrix:
         include:
           - build: aarch64
-            os: ubuntu-20.04
+            os: ubuntu-18.04
             target: aarch64-unknown-linux-gnu
             linker: gcc-aarch64-linux-gnu
             use-cross: true
diff --git a/.github/workflows/publish-deb-brew-pkg.yml b/.github/workflows/publish-deb-brew-pkg.yml
index a135ddafb..028001dcd 100644
--- a/.github/workflows/publish-deb-brew-pkg.yml
+++ b/.github/workflows/publish-deb-brew-pkg.yml
@@ -15,7 +15,7 @@ jobs:
 
   debian:
     name: Publish debian packagge
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     needs: check-version
     steps:
     - uses: hecrj/setup-rust-action@master
@@ -38,7 +38,7 @@ jobs:
 
   homebrew:
     name: Bump Homebrew formula
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     needs: check-version
     steps:
       - name: Create PR to Homebrew
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 0e92fc706..266e306d6 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-20.04, macos-latest, windows-latest]
+        os: [ubuntu-18.04, macos-latest, windows-latest]
     steps:
     - uses: actions/checkout@v3
     - name: Cache dependencies
@@ -40,7 +40,7 @@ jobs:
   # We run tests in debug also, to make sure that the debug_assertions are hit
   test-debug:
     name: Run tests in debug
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
@@ -58,7 +58,7 @@ jobs:
 
   clippy:
     name: Run Clippy
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
@@ -77,7 +77,7 @@ jobs:
 
   fmt:
     name: Run Rustfmt
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/update-cargo-toml-version.yml b/.github/workflows/update-cargo-toml-version.yml
index 968b5f050..faf3b0aaa 100644
--- a/.github/workflows/update-cargo-toml-version.yml
+++ b/.github/workflows/update-cargo-toml-version.yml
@@ -16,7 +16,7 @@ jobs:
 
   update-version-cargo-toml:
     name: Update version in Cargo.toml files
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions-rs/toolchain@v1
diff --git a/bors.toml b/bors.toml
index a29054dfb..b357e8d61 100644
--- a/bors.toml
+++ b/bors.toml
@@ -1,5 +1,5 @@
 status = [
-    'Tests on ubuntu-20.04',
+    'Tests on ubuntu-18.04',
     'Tests on macos-latest',
     'Tests on windows-latest',
     'Run Clippy',