diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7fab96b60a..6f351d036d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -17,7 +17,7 @@ on:
 jobs:
     # Basic checks, e.g. parse errors, commit messages, etc.
     basic-checks:
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-20.04
         strategy:
             matrix:
                 include:
@@ -88,7 +88,7 @@ jobs:
 
     # Tests for MySQL and MariaDB
     mysql-tests:
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-20.04
         strategy:
             matrix:
                 include:
@@ -229,7 +229,7 @@ jobs:
 
     # Tests for PostgreSQL
     postgres-tests:
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-20.04
         strategy:
             matrix:
                 include:
@@ -345,7 +345,7 @@ jobs:
 
     # Other database types, namely sqlite3 and mssql
     other-tests:
-        runs-on: ubuntu-18.04
+        runs-on: ubuntu-20.04
         strategy:
             matrix:
                 include: