diff --git a/.coveragerc b/.coveragerc
deleted file mode 100644
index bcf38d0..0000000
--- a/.coveragerc
+++ /dev/null
@@ -1,23 +0,0 @@
-# .coveragerc to control coverage.py
-[run]
-branch = True
-
-[report]
-# Regexes for lines to exclude from consideration
-exclude_lines =
-    # Have to re-enable the standard pragma
-    pragma: no cover
-
-    # Don't complain about missing debug-only code:
-    def __repr__
-    if self\.debug
-
-    # Don't complain if tests don't hit defensive assertion code:
-    raise AssertionError
-    raise NotImplementedError
-
-    # Don't complain if non-runnable code isn't run:
-    if 0:
-    if __name__ == .__main__.:
-
-ignore_errors = True
diff --git a/.github/workflows/releaser.yml b/.github/workflows/releaser.yml
index bfbced9..8106ef7 100644
--- a/.github/workflows/releaser.yml
+++ b/.github/workflows/releaser.yml
@@ -27,7 +27,7 @@ jobs:
       - name: get_new_current_version
         run: | 
           echo "NEWV=${{ steps.new_version.outputs.data }}" >> $GITHUB_ENV
-          echo "OLDV=$(grep "VERSION" -m1 setup.py | cut -d"=" -f2 | sed "s/['\" ]//g")" >> $GITHUB_ENV
+          echo "OLDV=$(grep "VERSION" -m1 pyproject.toml | cut -d"=" -f2 | sed "s/['\" ]//g")" >> $GITHUB_ENV
           
       - name: verify ${{env.NEWV}} > ${{env.OLDV}}
         if: ${{ env.NEWV <= env.OLDV }}
@@ -59,7 +59,6 @@ jobs:
 
       - name: set up new version
         run: |  
-            sed -i "s/$OLDV/$NEWV/" setup.py
             sed -i "s/$OLDV/$NEWV/" pyproject.toml
 
       - name: Set up Python
@@ -100,7 +99,7 @@ jobs:
           
       - uses: stefanzweifel/git-auto-commit-action@v4
         with:
-          file_pattern: setup.py pyproject.toml docs/change_log.rst docs/usage.rst
+          file_pattern: pyproject.toml docs/change_log.rst docs/usage.rst
           commit_message: '[GH-Actions] v${{ env.NEWV }} -- updated configuration and documentation files.'
           
       - name: Create Release  
diff --git a/.github/workflows/test_release.yml b/.github/workflows/test_release.yml
index d25ddce..393182f 100644
--- a/.github/workflows/test_release.yml
+++ b/.github/workflows/test_release.yml
@@ -37,7 +37,7 @@
         - name: get_new_current_version
           run: | 
             echo "NEWV=${{ steps.new_version.outputs.data }}" >> $GITHUB_ENV
-            echo "OLDV=$(grep "VERSION" -m1 setup.py | cut -d"=" -f2 | sed "s/['\" ]//g")" >> $GITHUB_ENV
+            echo "OLDV=$(grep "VERSION" -m1 pyproject.toml | cut -d"=" -f2 | sed "s/['\" ]//g")" >> $GITHUB_ENV
             
         - name: warn_no_version
           if: ${{ env.NEWV <= env.OLDV }}
@@ -56,7 +56,6 @@
         - name: set version
           run: |  
               echo release candidate: $NEWV
-              sed -i "s/$OLDV/$NEWV/" setup.py
               sed -i "s/$OLDV/$NEWV/" pyproject.toml
               
         - name: Set up Python
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 3ecbe19..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-language: python
-python:
-  - "3.8"
-  - "3.9"
-
-install:
-  - "pip install pandas"
-  - "pip install coveralls"
-  - "pip install coverage"
-  - "python setup.py install"
-
-script:
-#  - py.test --cov=pandas_market_calendars
-   - coverage run --source pandas_market_calendars -m py.test
-   - coverage report -m
-
-after_success:
-  - coveralls
diff --git a/docs/change_log.rst b/docs/change_log.rst
index b567e8e..94a8671 100644
--- a/docs/change_log.rst
+++ b/docs/change_log.rst
@@ -3,8 +3,14 @@
 
 Updates
 -------
+4.2.1 (08/21/2023)
+~~~~~~~~~~~~~~~~~~
+- Fix the pyproject.toml to properly generate sdist PR #267
+- Remove .travis.yml file as Travis-CI is no longer used
+- Merge .coveragerc into pyproject.toml
+
 4.2.0 (08/20/2023)
-~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~
 - CBOE GoodFriday special close is broken, reverted back to standard GoodFriday logic PR #265
 - Fixed BSE Holiday PR #248 Issue #245
 - Updated TASE Holidays 2022-2025 PR #263
diff --git a/pyproject.toml b/pyproject.toml
index 3c93014..ec38103 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "pandas_market_calendars"
-version = "4.2.0"
+version = "4.2.1"
 authors = [
   { name="Ryan Sheftel", email="rsheftel@alumni.upenn.edu" },
 ]
@@ -35,7 +35,7 @@ requires = ["setuptools>=61.0", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools]
-py-modules = ["pandas_market_calendars"]
+packages = ["pandas_market_calendars"]
 
 [project.urls]
 "Homepage" = "https://github.com/rsheftel/pandas_market_calendars"
@@ -43,3 +43,26 @@ py-modules = ["pandas_market_calendars"]
 "Documentation" = "https://pandas-market-calendars.readthedocs.io/en/latest/"
 "Changelog" = "https://pandas-market-calendars.readthedocs.io/en/latest/change_log.html"
 "Bug Tracker" = "https://github.com/rsheftel/pandas_market_calendars/issues"
+
+[tool.coverage.run]
+branch = true
+
+[tool.coverage.report]
+exclude_also = [
+    # Don't complain about missing debug-only code:
+    "def __repr__",
+    "if self\\.debug",
+
+    # Don't complain if tests don't hit defensive assertion code:
+    "raise AssertionError",
+    "raise NotImplementedError",
+
+    # Don't complain if non-runnable code isn't run:
+    "if 0:",
+    "if __name__ == .__main__.:",
+
+    # Don't complain about abstract methods, they aren't run:
+    "@(abc\\.)?abstractmethod",
+    ]
+
+ignore_errors = true