diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9ca7be88..44436cb2 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -51,7 +51,7 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
-      - uses: mamba-org/setup-micromamba@v1
+      - uses: mamba-org/setup-micromamba@v2
         with:
           # TODO: Use a conda environment file used for the diracx/base container image
           environment-name: test-env
@@ -80,7 +80,7 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
-      - uses: mamba-org/setup-micromamba@v1
+      - uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: environment.yml
           init-shell: bash
@@ -149,7 +149,7 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
-      - uses: mamba-org/setup-micromamba@v1
+      - uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: environment.yml
           init-shell: bash