diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 247a480..470a4c0 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-latest, windows-latest, ubuntu-latest]
-        python-version: ["3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
 
diff --git a/requirements.txt b/requirements.txt
index 187e724..a41f1e5 100644
Binary files a/requirements.txt and b/requirements.txt differ
diff --git a/src/tests/example_roadmaps/ColourThemeExtensiveUbuntuExample.png b/src/tests/example_roadmaps/ColourThemeExtensiveUbuntuExample.png
index 5b592ae..2adf65a 100644
Binary files a/src/tests/example_roadmaps/ColourThemeExtensiveUbuntuExample.png and b/src/tests/example_roadmaps/ColourThemeExtensiveUbuntuExample.png differ