diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d247bd4..5e119d8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -110,8 +110,6 @@ jobs:
 
     - name: Micromamba needed for cockle_wasm_env
       uses: mamba-org/setup-micromamba@main
-      with:
-        micromamba-version: '2.0.5-0'
 
     - name: Install dependencies
       working-directory: ui-tests
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 068bd1a..ba48a87 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -29,8 +29,6 @@ jobs:
 
       - name: Micromamba needed for cockle_wasm_env
         uses: mamba-org/setup-micromamba@main
-        with:
-          micromamba-version: '2.0.5-0'
 
       - name: Build the JupyterLite site
         working-directory: deploy
diff --git a/.github/workflows/update-integration-tests.yml b/.github/workflows/update-integration-tests.yml
index 98e4acc..f6c24a7 100644
--- a/.github/workflows/update-integration-tests.yml
+++ b/.github/workflows/update-integration-tests.yml
@@ -44,8 +44,6 @@ jobs:
 
       - name: Micromamba needed for cockle_wasm_env
         uses: mamba-org/setup-micromamba@main
-        with:
-          micromamba-version: '2.0.5-0'
 
       - name: Install dependencies
         working-directory: ui-tests