diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index bad03bc..5e0f55f 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -20,7 +20,7 @@ jobs:
         fetch-depth: 0
 
     - name: Setup Micromamba
-      uses: mamba-org/provision-with-micromamba@main
+      uses: mamba-org/provision-with-micromamba@v13
       with:
         environment-file: false
 
diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index 6676875..91db72b 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -16,7 +16,7 @@ jobs:
     - uses: actions/checkout@v3
 
     - name: Set up Python
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v4
       with:
         python-version: "3.x"
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index f4a3336..bd5b0c5 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,7 +18,7 @@ jobs:
     - uses: actions/checkout@v3
 
     - name: Setup Micromamba
-      uses: mamba-org/provision-with-micromamba@main
+      uses: mamba-org/provision-with-micromamba@v13
       with:
         environment-file: false