diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a63d107..5143ca4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,19 +11,26 @@ jobs:
       fail-fast: false
       max-parallel: 20
       matrix:
-        compiler: [dmd, ldc]
+        compiler: [dmd, ldc, dmd-beta, ldc-beta]
 
     steps:
     - uses: actions/checkout@v1
       with:
         submodules: true
-    - name: install
+
+    - name: apt
       run: |
         sudo apt-get update -qq
         sudo apt-get install -qq -y gcc wget protobuf-compiler libprotobuf-dev libprotoc-dev libclang-6.0-dev
         sudo ln -sf /usr/lib/x86_64-linux-gnu/libclang-6.0.so /usr/lib/libclang.so
-    - name: test
+
+    - name: make
       run: |
         source $(curl https://dlang.org/install.sh | bash -s -- ${{ matrix.compiler }} -a)
         dub fetch dpp
+        make -j
+
+    - name: test
+      run: |
+        source $(curl https://dlang.org/install.sh | bash -s -- ${{ matrix.compiler }} -a)
         make test
diff --git a/Makefile b/Makefile
index c3202f9..ab2c1a2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,3 @@
-DC := dmd
 PROTOC_VERSION := 1.3.3
 
 .PHONY: all clean
@@ -41,4 +40,5 @@ clean:
 	rm -rfv generated
 
 test: all
-	LIBRARY_PATH=`pwd`/download/lib dub test --parallel --compiler=$(DC)
+	LIBRARY_PATH=`pwd`/download/lib dub test --parallel
+