diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 5be167503e287..76e1e6ea1e11c 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -113,7 +113,7 @@ jobs:
                   commit_author: PostHog Bot <hey@posthog.com>
 
             - name: Upload results as artifacts
-              uses: actions/upload-artifact@v3
+              uses: actions/upload-artifact@v4
               with:
                   name: benchmarks
                   path: |
diff --git a/.github/workflows/build-hogql-parser.yml b/.github/workflows/build-hogql-parser.yml
index 90395eaa52180..99f9457e0611d 100644
--- a/.github/workflows/build-hogql-parser.yml
+++ b/.github/workflows/build-hogql-parser.yml
@@ -92,7 +92,7 @@ jobs:
               env:
                   MACOSX_DEPLOYMENT_TARGET: '12' # A modern target allows us to use C++20
 
-            - uses: actions/upload-artifact@v3
+            - uses: actions/upload-artifact@v4
               with:
                   path: |
                       hogql_parser/dist/*.whl
diff --git a/.github/workflows/ci-backend.yml b/.github/workflows/ci-backend.yml
index fb9d747af9968..65f8d6793211a 100644
--- a/.github/workflows/ci-backend.yml
+++ b/.github/workflows/ci-backend.yml
@@ -299,7 +299,7 @@ jobs:
                   exit 1
 
             - name: Archive email renders
-              uses: actions/upload-artifact@v3
+              uses: actions/upload-artifact@v4
               if: needs.changes.outputs.backend == 'true' && matrix.segment == 'FOSS' && matrix.person-on-events == false
               with:
                   name: email_renders
diff --git a/.github/workflows/ci-e2e.yml b/.github/workflows/ci-e2e.yml
index 57893e87f83bd..c619101e264c1 100644
--- a/.github/workflows/ci-e2e.yml
+++ b/.github/workflows/ci-e2e.yml
@@ -243,21 +243,21 @@ jobs:
                   GITHUB_ACTION_RUN_URL: '${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}'
 
             - name: Archive test screenshots
-              uses: actions/upload-artifact@v3
+              uses: actions/upload-artifact@v4
               with:
                   name: screenshots
                   path: cypress/screenshots
               if: ${{ failure() }}
 
             - name: Archive test downloads
-              uses: actions/upload-artifact@v3
+              uses: actions/upload-artifact@v4
               with:
                   name: downloads
                   path: cypress/downloads
               if: ${{ failure() }}
 
             - name: Archive test videos
-              uses: actions/upload-artifact@v3
+              uses: actions/upload-artifact@v4
               with:
                   name: videos
                   path: cypress/videos
@@ -265,7 +265,7 @@ jobs:
 
             - name: Archive accessibility violations
               if: needs.changes.outputs.shouldTriggerCypress == 'true'
-              uses: actions/upload-artifact@v3
+              uses: actions/upload-artifact@v4
               with:
                   name: accessibility-violations
                   path: '**/a11y/'
@@ -273,7 +273,7 @@ jobs:
 
             - name: Show logs on failure
               # use artefact here, as I think the output will be too large for display in an action
-              uses: actions/upload-artifact@v3
+              uses: actions/upload-artifact@v4
               with:
                   name: logs-${{ strategy.job-index }}
                   path: /tmp/logs
diff --git a/.github/workflows/ci-plugin-server.yml b/.github/workflows/ci-plugin-server.yml
index b945184730104..421e3b15342b9 100644
--- a/.github/workflows/ci-plugin-server.yml
+++ b/.github/workflows/ci-plugin-server.yml
@@ -271,7 +271,7 @@ jobs:
                   ./bin/ci_functional_tests.sh
 
             - name: Upload coverage report
-              uses: actions/upload-artifact@v3
+              uses: actions/upload-artifact@v4
               if: always()
               with:
                   name: functional-coverage
diff --git a/.github/workflows/storybook-chromatic.yml b/.github/workflows/storybook-chromatic.yml
index 43b15131affa0..2d1d201a733a4 100644
--- a/.github/workflows/storybook-chromatic.yml
+++ b/.github/workflows/storybook-chromatic.yml
@@ -158,7 +158,7 @@ jobs:
 
             - name: Archive failure screenshots
               if: ${{ failure() }}
-              uses: actions/upload-artifact@v3
+              uses: actions/upload-artifact@v4
               with:
                   name: failure-screenshots-${{ matrix.browser }}
                   path: frontend/__snapshots__/__failures__/