diff --git a/.github/workflows/branch-docs.yml b/.github/workflows/branch-docs.yml
index 7a4ab1f1c..6447d047d 100644
--- a/.github/workflows/branch-docs.yml
+++ b/.github/workflows/branch-docs.yml
@@ -15,7 +15,7 @@ jobs:
       run:
         shell: bash -l {0}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0  # get all tags, lets setuptools_scm do its thing
 
diff --git a/.github/workflows/build_installer.yml b/.github/workflows/build_installer.yml
index e6efa4814..cea4feca6 100644
--- a/.github/workflows/build_installer.yml
+++ b/.github/workflows/build_installer.yml
@@ -26,7 +26,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - uses: conda-incubator/setup-miniconda@v3
       with:
@@ -47,7 +47,7 @@ jobs:
       shell: bash
 
     - name: Upload installer to Github artifact
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         path: build/Activitysim-${{ inputs.version }}-${{ matrix.OS_NAME }}-${{ matrix.ARCH }}*
         name: Activitysim-${{ inputs.version }}-${{ matrix.OS_NAME }}-${{ matrix.ARCH }}
diff --git a/.github/workflows/core_tests.yml b/.github/workflows/core_tests.yml
index 134242cd6..8a75a4f67 100644
--- a/.github/workflows/core_tests.yml
+++ b/.github/workflows/core_tests.yml
@@ -452,7 +452,7 @@ jobs:
         with:
           fetch-depth: 0  # get all tags, lets setuptools_scm do its thing
       - name: Set up Python 3.10
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: "3.10"
       - name: Install dependencies
diff --git a/.github/workflows/deployment.yml b/.github/workflows/deployment.yml
index 2a0ef70c3..10652bba4 100644
--- a/.github/workflows/deployment.yml
+++ b/.github/workflows/deployment.yml
@@ -13,10 +13,10 @@ jobs:
     runs-on: ubuntu-latest
     if: github.repository == 'ActivitySim/activitysim'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         name: Install Python
         with:
           python-version: "3.10"
@@ -39,7 +39,7 @@ jobs:
           else
             echo "✅ Looks good"
           fi
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: releases
           path: dist
@@ -48,11 +48,11 @@ jobs:
     needs: build-artifacts
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         name: Install Python
         with:
           python-version: "3.10"
-      - uses: actions/download-artifact@v4.1.7
+      - uses: actions/download-artifact@v4
         with:
           name: releases
           path: dist
@@ -84,13 +84,13 @@ jobs:
       run:
         shell: bash -l {0}
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/download-artifact@v4.1.7
+      - uses: actions/checkout@v4
+      - uses: actions/download-artifact@v4
         with:
           name: releases
           path: dist
       - name: Set up Python 3.10
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: "3.10"
       - name: Install dependencies
@@ -132,7 +132,7 @@ jobs:
     if: github.event_name == 'release'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v4.1.7
+      - uses: actions/download-artifact@v4
         with:
           name: releases
           path: dist
diff --git a/.github/workflows/test-deploy.yml b/.github/workflows/test-deploy.yml
index b4dbced25..bbcd938b3 100644
--- a/.github/workflows/test-deploy.yml
+++ b/.github/workflows/test-deploy.yml
@@ -12,10 +12,10 @@ jobs:
   build-artifacts:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         name: Install Python
         with:
           python-version: "3.10"
@@ -43,7 +43,7 @@ jobs:
           else
             echo "✅ Looks good"
           fi
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: releases
           path: dist
@@ -52,11 +52,11 @@ jobs:
     needs: build-artifacts
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         name: Install Python
         with:
           python-version: "3.10"
-      - uses: actions/download-artifact@v4.1.7
+      - uses: actions/download-artifact@v4
         with:
           name: releases
           path: dist