diff --git a/.github/workflows/build_wheels.yml b/.github/workflows/build_wheels.yml
index 88cbf9ec..ca184268 100644
--- a/.github/workflows/build_wheels.yml
+++ b/.github/workflows/build_wheels.yml
@@ -3,11 +3,12 @@ name: PyPI
 on:
   workflow_dispatch:
     inputs:
-      publish_to_pypi:
-        description: 'Publish to PyPI?'
+      target:
+        type: choice
+        description: 'Package Index'
         required: true
-        type: string
-        default: 'false'
+        default: 'PYPI'
+        options: [ 'TESTPYPI', 'PYPI' ]
 
 jobs:
   dist:
@@ -23,8 +24,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-          ref: '0.9.7'
-
+          ref: 0.9.7
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -52,16 +52,16 @@ jobs:
           path: dist
 
       - name: publish to testpypi
+        if: ${{ github.event.inputs.target  == 'TESTPYPI' }}
         uses: pypa/gh-action-pypi-publish@release/v1
-        if: ${{ inputs.publish_to_pypi == 'false' }}
         with:
           user: __token__
           password: ${{ secrets.TESTPYPI_TOKEN }}
           repository_url: https://test.pypi.org/legacy/
 
       - name: publish to pypi
+        if: ${{ github.event.inputs.target  == 'PYPI' }}
         uses: pypa/gh-action-pypi-publish@release/v1
-        if: ${{ inputs.publish_to_pypi == 'true' }}
         with:
           user: __token__
           password: ${{ secrets.PYPI_TOKEN }}
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index 11004029..01f19f51 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -11,6 +11,7 @@ on:
 
 jobs:
   build:
+    name: Unit Tests for ${{ matrix.python-version }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 67c53bd6..3661da20 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -8,8 +8,8 @@ repos:
     -   id: trailing-whitespace
     -   id: check-added-large-files
 
--   repo: https://gitlab.com/pycqa/flake8
-    rev: 3.9.1
+-   repo: https://github.com/PyCQA/flake8
+    rev: 7.0.0
     hooks:
     -   id: flake8
 
diff --git a/pyproject.toml b/pyproject.toml
index f0420202..8fe4f003 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -134,7 +134,7 @@ extend-exclude = '''
 [tool.tox]
 legacy_tox_ini = """
 [tox]
-envlist = py39-pandas{11,12},py{39,310}-pandas{13,14,15}, py{39,310, 311,312}-pandas{20,21,22}
+envlist = py{39,310}-pandas{13,14,15}, py{39,310, 311,312}-pandas{20,21,22}
 isolated_build = True
 skip_missing_interpreters = True
 minversion = 3.23.0
@@ -154,8 +154,6 @@ setenv =
 changedir = tmp
 extras = test
 deps =
-    pandas11: pandas>=1.1.0,<1.2
-    pandas12: pandas>=1.2.0,<1.3
     pandas13: pandas>=1.3.0,<1.4
     pandas14: pandas>=1.4.0,<1.5
     pandas15: pandas>=1.5.0,<1.6
diff --git a/src/pyfolio/plotting.py b/src/pyfolio/plotting.py
index 361f84c9..8e3cc149 100644
--- a/src/pyfolio/plotting.py
+++ b/src/pyfolio/plotting.py
@@ -811,7 +811,7 @@ def cone(in_sample_returns (pd.Series),
     ax.yaxis.set_major_formatter(FuncFormatter(y_axis_formatter))
 
     if factor_returns is not None:
-        cum_factor_returns = ep.cum_returns(factor_returns[cum_rets.index], 1.0)
+        cum_factor_returns = ep.cum_returns(factor_returns.loc[cum_rets.index], 1.0)
         cum_factor_returns.plot(
             lw=2,
             color="gray",