diff --git a/packages/grpc-js-xds/interop/test-client.Dockerfile b/packages/grpc-js-xds/interop/test-client.Dockerfile
index bd80f480..7346a5bc 100644
--- a/packages/grpc-js-xds/interop/test-client.Dockerfile
+++ b/packages/grpc-js-xds/interop/test-client.Dockerfile
@@ -24,12 +24,12 @@ COPY . .
 
 WORKDIR /node/src/grpc-node/packages/proto-loader
 RUN npm install
+WORKDIR /node/src/grpc-node/packages/grpc-js
+RUN npm install
 WORKDIR /node/src/grpc-node/packages/grpc-health-check
 RUN npm install
 WORKDIR /node/src/grpc-node/packages/grpc-reflection
 RUN npm install
-WORKDIR /node/src/grpc-node/packages/grpc-js
-RUN npm install
 WORKDIR /node/src/grpc-node/packages/grpc-js-xds
 RUN npm install
 
diff --git a/packages/grpc-js-xds/interop/test-server.Dockerfile b/packages/grpc-js-xds/interop/test-server.Dockerfile
index da04881e..17755799 100644
--- a/packages/grpc-js-xds/interop/test-server.Dockerfile
+++ b/packages/grpc-js-xds/interop/test-server.Dockerfile
@@ -24,12 +24,12 @@ COPY . .
 
 WORKDIR /node/src/grpc-node/packages/proto-loader
 RUN npm install
+WORKDIR /node/src/grpc-node/packages/grpc-js
+RUN npm install
 WORKDIR /node/src/grpc-node/packages/grpc-health-check
 RUN npm install
 WORKDIR /node/src/grpc-node/packages/grpc-reflection
 RUN npm install
-WORKDIR /node/src/grpc-node/packages/grpc-js
-RUN npm install
 WORKDIR /node/src/grpc-node/packages/grpc-js-xds
 RUN npm install