diff --git a/.github/workflows/run-docs-build.yml b/.github/workflows/run-docs-build.yml
index 06bfa8fb..29ab62cd 100644
--- a/.github/workflows/run-docs-build.yml
+++ b/.github/workflows/run-docs-build.yml
@@ -16,7 +16,7 @@ jobs:
       matrix:
         include:
           - os: ubuntu-20.04
-            python: "3.8"
+            python: "3.9"
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/run-tests-workflow.yml b/.github/workflows/run-tests-workflow.yml
index e39b2224..eb3873ca 100644
--- a/.github/workflows/run-tests-workflow.yml
+++ b/.github/workflows/run-tests-workflow.yml
@@ -18,13 +18,9 @@ jobs:
         include:
           # Linux
           - os: ubuntu-20.04
-            python-version: 3.8
+            python-version: 3.9
             test-env: "PyQt5~=5.12.0"
 
-          - os: ubuntu-20.04
-            python-version: 3.8
-            test-env: "PyQt5~=5.15.0"
-
           - os: ubuntu-20.04
             python-version: 3.9
             test-env: "PyQt5~=5.14.0"
@@ -53,7 +49,7 @@ jobs:
 
           # macOS
           - os: macos-12
-            python-version: 3.8
+            python-version: 3.9
             test-env: "PyQt5~=5.12.0"
 
           - os: macos-12
@@ -82,7 +78,7 @@ jobs:
 
           # Windows
           - os: windows-2019
-            python-version: 3.8
+            python-version: 3.9
             test-env: "PyQt5~=5.12.0"
 
           - os: windows-2019
diff --git a/setup.py b/setup.py
index 9e1dbdcc..a39b9807 100755
--- a/setup.py
+++ b/setup.py
@@ -64,7 +64,7 @@
     "Documentation": "https://orange-canvas-core.readthedocs.io/en/latest/",
 }
 
-PYTHON_REQUIRES = ">=3.8"
+PYTHON_REQUIRES = ">=3.9"
 
 
 class InstallMultilingualCommand(install):