diff --git a/action.yml b/action.yml
index 44ce152..f37e7ef 100644
--- a/action.yml
+++ b/action.yml
@@ -73,6 +73,11 @@ runs:
           - snakemake ==${{ inputs.snakemake-version }}
         EOF
 
+    - name: Generate random conda installation suffix
+      shell: bash -el {0}
+      run: |
+        echo "CONDA_INSTALL_SUFFIX=${RANDOM}${RANDOM}" >> "$GITHUB_ENV"
+
     - name: Setup conda
       uses: conda-incubator/setup-miniconda@v3
       with:
@@ -81,6 +86,7 @@ runs:
         miniforge-version: latest
         environment-file: .snakemake.environment.yaml
         activate-environment: snakemake
+        installation-dir: ${{ runner.temp }}/snakemake_miniconda_${{ env.CONDA_INSTALL_SUFFIX }}
 
     - name: Display snakemake version
       shell: bash -el {0}