diff --git a/.github/workflows/mypy.yml b/.github/workflows/mypy.yml
index 08da614ce0..32fd5ebfea 100644
--- a/.github/workflows/mypy.yml
+++ b/.github/workflows/mypy.yml
@@ -13,7 +13,7 @@ jobs:
         shell: bash -leo pipefail {0}
     steps:
       - uses: actions/checkout@v4
-      - uses: mamba-org/setup-micromamba@v1
+      - uses: mamba-org/setup-micromamba@v2
         with:
           micromamba-version: "1.5.10-0" # until https://github.com/mamba-org/setup-micromamba/issues/225 is resolved
           environment-file: environment.yml
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c1f7d3f75b..a319e23acc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -147,7 +147,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Set up Python ${{ matrix.python-version }}
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-name: pytensor-test
           micromamba-version: "1.5.10-0" # until https://github.com/mamba-org/setup-micromamba/issues/225 is resolved
@@ -230,7 +230,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Set up Python 3.10
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-name: pytensor-test
           micromamba-version: "1.5.10-0" # until https://github.com/mamba-org/setup-micromamba/issues/225 is resolved