diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..11eb345
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,10 @@
+# Set update schedule for GitHub Actions
+
+version: 2
+updates:
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      # Check for updates to GitHub Actions every week
+      interval: "weekly"
\ No newline at end of file
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9026e01..8af3a5c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,27 +10,26 @@ jobs:
       fail-fast: false
       max-parallel: 4
       matrix:
-        python-version: [3.9, '3.10', 3.11]
+        python-version: [3.9, '3.10', 3.11, 3.12]
         os: [ubuntu-latest, macos-latest, windows-latest]
 
 
     steps:
     - name: Checkout repo
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install the package and its dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install .[docs,test,demo]
-    - name: Check Dependencies
-      run: |
-        pipconflictchecker
+        pip install .
     - name: Lint
       run: |
+        pip install flake8
         flake8 .
     - name: Test
       run: |
+        pip install pytest
         cd && mkdir for_test && cd for_test && pytest -svv --pyargs gapps  --durations=0
\ No newline at end of file
diff --git a/gapps/cardservice/utilities.py b/gapps/cardservice/utilities.py
index 8fc6f9b..03b8a70 100644
--- a/gapps/cardservice/utilities.py
+++ b/gapps/cardservice/utilities.py
@@ -129,7 +129,9 @@ def floats2hex(rgb):
     """Takes an RGB tuple or list and returns a hex RGB string."""
     if not rgb or not isinstance(rgb, (tuple, list)):
         return None
-    return f'#{int(rgb[0]*255):02x}{int(rgb[1]*255):02x}{int(rgb[2]*255):02x}'
+    str_hex = f'#{int(rgb[0] * 255):02x}{int(rgb[1] * 255):02x}'
+    str_hex += f'{int(rgb[2] * 255):02x}'
+    return str_hex
 
 
 def get_form_value(form, key):
diff --git a/pyproject.toml b/pyproject.toml
index 1273834..cf7515d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,10 +18,10 @@ classifiers = [
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
 ]
 
 dependencies = [