diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3583c71..7f00770 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,6 +17,9 @@ jobs:
         with:
           version: "0.5.10"
 
+      - name: Install tkinter for GUI
+        run: sudo apt install python3-tk -y
+
       - name: Set up env
         run: uv sync --all-extras
 
diff --git a/pyproject.toml b/pyproject.toml
index 025b02f..d7a0564 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ docs = [
 
 [project.urls]  # Optional
 "Homepage" = "https://kit-mrt.github.io/behavior_generation_lecture_python/"
-"Bug Reports" = "hhttps://github.com/KIT-MRT/behavior_generation_lecture_python/issues"
+"Bug Reports" = "https://github.com/KIT-MRT/behavior_generation_lecture_python/issues"
 "Source" = "https://github.com/KIT-MRT/behavior_generation_lecture_python"
 
 [build-system]