diff --git a/.github/workflows/build-ultraplot.yml b/.github/workflows/build-ultraplot.yml
index ec2e8da59..e2eb364ad 100644
--- a/.github/workflows/build-ultraplot.yml
+++ b/.github/workflows/build-ultraplot.yml
@@ -53,7 +53,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: mamba-org/setup-micromamba@v2.0.7
+      - uses: mamba-org/setup-micromamba@v3.0.0
         with:
           environment-file: ./environment.yml
           init-shell: bash
@@ -100,7 +100,7 @@ jobs:
 
       - uses: actions/checkout@v6
 
-      - uses: mamba-org/setup-micromamba@v2.0.7
+      - uses: mamba-org/setup-micromamba@v3.0.0
         with:
           environment-file: ./environment.yml
           init-shell: bash
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e5aafe2b5..beff635eb 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -50,7 +50,7 @@ jobs:
 
       - name: Build test map on cache miss
         if: steps.restore-map.outputs.cache-hit != 'true'
-        uses: mamba-org/setup-micromamba@v2.0.7
+        uses: mamba-org/setup-micromamba@v3.0.0
         with:
           environment-file: ./environment.yml
           init-shell: bash
@@ -157,7 +157,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: mamba-org/setup-micromamba@v2.0.7
+      - uses: mamba-org/setup-micromamba@v3.0.0
         with:
           environment-file: ./environment.yml
           init-shell: bash
@@ -182,7 +182,7 @@ jobs:
             ultraplot/tests
 
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: ./coverage.xml
diff --git a/.github/workflows/test-map.yml b/.github/workflows/test-map.yml
index bb78c9663..e79729437 100644
--- a/.github/workflows/test-map.yml
+++ b/.github/workflows/test-map.yml
@@ -23,7 +23,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: mamba-org/setup-micromamba@v2.0.7
+      - uses: mamba-org/setup-micromamba@v3.0.0
         with:
           environment-file: ./environment.yml
           init-shell: bash
@@ -48,7 +48,7 @@ jobs:
           python tools/ci/build_test_map.py --coverage-file .coverage --output .ci/test-map.json --root .
 
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: ./coverage.xml