diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 10f7827..46b6c63 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Install Conda environment with Micromamba
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: dev-environment.yml
       - name: Install
@@ -21,7 +21,7 @@ jobs:
         run: make -C docs html
       - name: Publish
         if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./docs/_build/html
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b6b77e8..2a66527 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -22,7 +22,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Install Conda environment with Micromamba
-      uses: mamba-org/setup-micromamba@v1
+      uses: mamba-org/setup-micromamba@v2
       with:
           environment-file: dev-environment.yml
 
@@ -33,7 +33,7 @@ jobs:
         sha256sum * | tee SHA256SUMS
 
     - name: Upload builds
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: dist ${{ github.run_number }}
         path: ./dist
@@ -66,7 +66,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Conda environment with Micromamba
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: dev-environment.yml
           create-args: >-
@@ -80,7 +80,7 @@ jobs:
         name: Install matplotlib pinned
         run: micromamba install matplotlib=${{ matrix.mpl-version}}.*
 
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: dist ${{ github.run_number }}
           path: ./dist
@@ -121,9 +121,9 @@ jobs:
 
       - name: Upload UI Test artifacts
         if: always() && matrix.os == 'ubuntu'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: ui-test-output
+          name: ui-test-output-${{ matrix.os }}-${{ matrix.python }}-${{ matrix.mpl-version }}
           path: |
             ui-tests/playwright-report
             ui-tests/test-results
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e44381f..4d94ba9 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,12 +11,10 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Install Conda environment with Micromamba
-      uses: mamba-org/provision-with-micromamba@main
+      uses: mamba-org/setup-micromamba@v2
       with:
-        channels: conda-forge
-        environment-file: false
         environment-name: ipympl-release
-        extra-specs: |
+        create-args: >-
           python=3.9
           jupyterlab
           yarn
diff --git a/.github/workflows/update_galata_references.yaml b/.github/workflows/update_galata_references.yaml
index 2da7b85..4070260 100644
--- a/.github/workflows/update_galata_references.yaml
+++ b/.github/workflows/update_galata_references.yaml
@@ -36,7 +36,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Install Conda environment with Micromamba
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: dev-environment.yml
           create-args: >-