diff --git a/.github/workflows/build_tests.yml b/.github/workflows/build_tests.yml
index e1fb17f..fc53d27 100644
--- a/.github/workflows/build_tests.yml
+++ b/.github/workflows/build_tests.yml
@@ -49,11 +49,11 @@ jobs:
   #      os: [ubuntu-latest]    
   #  steps:
   #  - name: Set up Python 
-  #    uses: actions/setup-python@v2
+  #    uses: actions/setup-python@v4
   #    with:
   #      python-version: ${{ matrix.python-version }}
   #  - name: Download wheel
-  #    uses: actions/download-artifact@v2
+  #    uses: actions/download-artifact@v3
   #    with:
   #      name: wheel
   #  - name: Install chama
@@ -95,7 +95,7 @@ jobs:
       env:
         COVERAGE_FILE: .coverage.${{ matrix.python-version }}.${{ matrix.os }}
     - name: Save coverage
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v3
       with:
         name: coverage
         path: .coverage.${{ matrix.python-version }}.${{ matrix.os }}
@@ -116,7 +116,7 @@ jobs:
         pip install coveralls
         python setup.py develop
     - name: Download coverage artifacts from test matrix
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v3
       with:
         name: coverage
     - name: Setup coverage and combine reports
@@ -135,12 +135,12 @@ jobs:
         coverage json --pretty-print
         coverage html --show-contexts
     - name: Save coverage JSON
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v3
       with:
         name: coverage
         path: coverage.json
     - name: Save coverage html
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v3
       with:
         name: coverage
         path: htmlcov
@@ -151,7 +151,7 @@ jobs:
     continue-on-error: true
     steps:
     - name: Set up Python 
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: 3.9
     - uses: actions/checkout@v2
@@ -162,7 +162,7 @@ jobs:
         pip install -r requirements.txt
         python setup.py develop
     - name: Download coverage artifacts from test matrix
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v3
       with:
         name: coverage
     - name: Setup coverage and combine reports