diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2a12446..42824c9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,11 +24,15 @@ jobs:
       run: sudo apt update && sudo apt -y install libsodium-dev
 
     - name: Configure CMake
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DSOLANACEAE_OBJECT_STORE_BUILD_TESTING=ON
 
     - name: Build
       run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j 4
 
+    - name: Test file2 zstd
+      working-directory: ${{github.workspace}}/build
+      run: ctest -C ${{env.BUILD_TYPE}} --test-dir external/solanaceae_object_store/
+
   macos:
     timeout-minutes: 10
 
diff --git a/external/solanaceae_object_store b/external/solanaceae_object_store
index f21dd1d..2b5b19c 160000
--- a/external/solanaceae_object_store
+++ b/external/solanaceae_object_store
@@ -1 +1 @@
-Subproject commit f21dd1dbf055a3d1124b0c7833968b59e74bd4c7
+Subproject commit 2b5b19cf318f5a18b395fb1393e861d6900ed891