diff --git a/.github/workflows/linux-eic-shell.yml b/.github/workflows/linux-eic-shell.yml
index 23f59c18ec..f278a3d39e 100644
--- a/.github/workflows/linux-eic-shell.yml
+++ b/.github/workflows/linux-eic-shell.yml
@@ -104,21 +104,21 @@ jobs:
         run: |
           export LD_LIBRARY_PATH=$PWD/install/lib:$LD_LIBRARY_PATH
           ctest --test-dir build -V
-    - name: Archive install directory
-      run: tar -cf install.tar install/
+    - name: Compress install directory
+      run: tar -caf install.tar.zst install/
     - name: Upload install directory
       uses: actions/upload-artifact@v3
       with:
         name: install-${{ matrix.CC }}-eic-shell-${{ matrix.CMAKE_BUILD_TYPE }}
-        path: install.tar
+        path: install.tar.zst
         if-no-files-found: error
     - name: Compress build directory
-      run: tar -czf build.tar.gz build/
+      run: tar -caf build.tar.zst build/
     - name: Upload build directory
       uses: actions/upload-artifact@v3
       with:
         name: build-${{ matrix.CC }}-eic-shell-${{ matrix.CMAKE_BUILD_TYPE }}
-        path: build.tar.gz
+        path: build.tar.zst
         if-no-files-found: error
 
   clang-tidy-iwyu:
@@ -136,7 +136,7 @@ jobs:
         name: build-clang-eic-shell-Debug
         path: .
     - name: Uncompress build artifact
-      run: tar -zxf build.tar.gz
+      run: tar -xaf build.tar.zst
     - name: Run clang-tidy on changed files
       uses: eic/run-cvmfs-osg-eic-shell@main
       if: ${{ github.event_name == 'pull_request' }}
@@ -212,7 +212,7 @@ jobs:
         name: build-clang-eic-shell-Debug
         path: .
     - name: Uncompress build artifact
-      run: tar -zxf build.tar.gz
+      run: tar -xaf build.tar.zst
     - run: sudo apt-get update
     - run: sudo apt-get install -y llvm-15 jq
     - name: llvm-cov
@@ -378,7 +378,7 @@ jobs:
       with:
         name: install-${{ matrix.CC }}-eic-shell-Release
     - name: Unarchive install directory
-      run: tar -xf install.tar
+      run: tar -xaf install.tar.zst
     - name: Download simulation input
       uses: actions/download-artifact@v3
       with:
@@ -438,7 +438,7 @@ jobs:
       with:
         name: install-${{ matrix.CC }}-eic-shell-Release
     - name: Unarchive install directory
-      run: tar -xf install.tar
+      run: tar -xaf install.tar.zst
     - uses: actions/download-artifact@v3
       with:
         name: sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}.edm4hep.root
@@ -485,7 +485,7 @@ jobs:
       with:
         name: install-${{ matrix.CC }}-eic-shell-Release
     - name: Unarchive install directory
-      run: tar -xf install.tar
+      run: tar -xaf install.tar.zst
     - uses: actions/download-artifact@v3
       with:
         name: sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}.edm4hep.root
@@ -526,7 +526,7 @@ jobs:
       with:
         name: install-${{ matrix.CC }}-eic-shell-Release
     - name: Uncompress install directory
-      run: tar -xf install.tar
+      run: tar -xaf install.tar.zst
     - uses: actions/download-artifact@v3
       with:
         name: sim_${{ matrix.particle }}_1GeV_20GeV_${{ matrix.detector_config }}.edm4hep.root
@@ -645,7 +645,7 @@ jobs:
       with:
         name: install-${{ matrix.CC }}-eic-shell-Release
     - name: Unarchive install directory
-      run: tar -xf install.tar
+      run: tar -xaf install.tar.zst
     - uses: actions/download-artifact@v3
       with:
         name: sim_${{ matrix.particle }}_EcalLumiSpec_${{ matrix.detector_config }}.edm4hep.root
@@ -700,7 +700,7 @@ jobs:
       with:
         name: install-${{ matrix.CC }}-eic-shell-Release
     - name: Unarchive install directory
-      run: tar -xf install.tar
+      run: tar -xaf install.tar.zst
     - uses: actions/download-artifact@v3
       with:
         name: sim_dis_${{ matrix.beam }}_minQ2=${{ matrix.minq2 }}_${{ matrix.detector_config }}.edm4hep.root