diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fe777e1..a89759d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,7 +7,7 @@ testbench:   # This job runs in the test stage.
   stage: test    # It only starts when the job in the build stage completes successfully.
   script:
     - echo "Installing dependencies..."
-    - apt update && apt install -y make iverilog yosys verilator gtkwave
+    - apt update && apt install -y make iverilog yosys verilator gtkwave arachne-pnr
     - echo "Running unit tests..."
     - make
     - make sim