diff --git a/.binder/environment.yml b/.binder/environment.yml
index 77ec411..6cd3b33 100644
--- a/.binder/environment.yml
+++ b/.binder/environment.yml
@@ -4,6 +4,7 @@ channels:
 dependencies:
 # !! you can only use single `=` to set a version. Otherwise it will break the update job
 - invoke=2.2.0
+- mamba
 - packaging
 - pyyaml
 # applications
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f310cd6..793ded9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -15,30 +15,18 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - name: Cache conda
-        uses: actions/cache@v3
-        env:
-          # Increase this value to reset cache if .binder/environment.yml has not changed
-          CACHE_NUMBER: 0
+      - name: Install mamba
+        uses: mamba-org/setup-micromamba@v1
         with:
-          path: ~/conda_pkgs_dir
-          key:
-            ${{ runner.os }}-conda-${{ env.CACHE_NUMBER }}-${{ hashFiles('.binder/environment.yml') }}
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          mamba-version: ">=1.4.0"
-          # Defaults is added automatically
-          channels: conda-forge
-          channel-priority: "strict"
-          activate-environment: jupyterlab-demo
+          micromamba-version: '1.5.1-0'
           environment-file: .binder/environment.yml
-          # The following option is blocking the environment resolution (newer versions are not found)
-          # use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
+          environment-name: jupyterlab-demo
+          cache-environment: true
       - run: |
-          conda info
-          conda list
-          conda config --show-sources
-          conda config --show
+          micromamba info
+          micromamba list
+          micromamba config sources
+          micromamba config list
           printenv | sort
       - run: |
           invoke r --env-name=jupyterlab-demo