diff --git a/Dockerfile b/Dockerfile
index ad45a8fd2d1..4907c92a115 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -49,7 +49,8 @@ RUN cd web && npm run build && \
     rm -rf node_modules/@hermes/ink && \
     rm -rf packages/hermes-ink/node_modules && \
     cp -R packages/hermes-ink node_modules/@hermes/ink && \
-    npm install --omit=dev --prefer-offline --no-audit --prefix node_modules/@hermes/ink && \
+    npm ci --omit=dev --prefer-offline --no-audit --prefix node_modules/@hermes/ink && \
+    rm -rf packages/hermes-ink && \
     node --input-type=module -e "await import('@hermes/ink')"
 
 # ---------- Permissions ----------
diff --git a/tests/tools/test_dockerfile_pid1_reaping.py b/tests/tools/test_dockerfile_pid1_reaping.py
index a7d425301d8..af6fa37fc14 100644
--- a/tests/tools/test_dockerfile_pid1_reaping.py
+++ b/tests/tools/test_dockerfile_pid1_reaping.py
@@ -131,7 +131,9 @@ def test_dockerfile_materializes_local_tui_ink_package(dockerfile_text):
         and "node_modules/@hermes/ink" in step
         and "packages/hermes-ink" in step
         and "rm -rf packages/hermes-ink/node_modules" in step
+        and "npm ci --omit=dev" in step
         and "--prefix node_modules/@hermes/ink" in step
+        and "rm -rf packages/hermes-ink" in step
         and "await import('@hermes/ink')" in step
         for step in _run_steps(dockerfile_text)
     )