diff --git a/skaffold.yaml b/skaffold.yaml
index bd04f86..9bf9d46 100644
--- a/skaffold.yaml
+++ b/skaffold.yaml
@@ -66,3 +66,4 @@ profiles:
       googleCloudBuild:
         diskSizeGb: 300
         machineType: "N1_HIGHCPU_32"
+        timeout: 4000s
diff --git a/src/adservice/build.gradle b/src/adservice/build.gradle
index 47653ac..2c6bce7 100644
--- a/src/adservice/build.gradle
+++ b/src/adservice/build.gradle
@@ -26,7 +26,7 @@ group = "adservice"
 version = "0.1.0-SNAPSHOT" // CURRENT_OPENCENSUS_VERSION
 
 def opencensusVersion = "0.15.0" // LATEST_OPENCENSUS_RELEASE_VERSION
-def grpcVersion = "1.10.1" // CURRENT_GRPC_VERSION
+def grpcVersion = "1.15.0" // CURRENT_GRPC_VERSION
 def prometheusVersion = "0.3.0"
 
 tasks.withType(JavaCompile) {
diff --git a/src/loadgenerator/Dockerfile b/src/loadgenerator/Dockerfile
index a90c23e..b0004cf 100644
--- a/src/loadgenerator/Dockerfile
+++ b/src/loadgenerator/Dockerfile
@@ -1,7 +1,21 @@
-FROM python:3.6
+FROM python:3-alpine as base
+
+FROM base as builder
+
+RUN apk add --update --no-cache \
+    gcc \
+    linux-headers \
+    make \
+    musl-dev \
+    python-dev \
+    g++
 
 COPY requirements.txt .
-RUN pip install -r requirements.txt
+
+RUN pip install --install-option="--prefix=/install" -r requirements.txt
+
+FROM base
+COPY --from=builder /install /usr/local
 
 COPY . .
 ENTRYPOINT ./loadgen.sh
diff --git a/src/loadgenerator/loadgen.sh b/src/loadgenerator/loadgen.sh
index 514174e..2a68db7 100755
--- a/src/loadgenerator/loadgen.sh
+++ b/src/loadgenerator/loadgen.sh
@@ -1,4 +1,4 @@
-#!/bin/bash -eu
+#!/bin/sh -eu
 #
 # Copyright 2018 Google LLC
 #
diff --git a/src/paymentservice/Dockerfile b/src/paymentservice/Dockerfile
index abe0eba..5785d35 100644
--- a/src/paymentservice/Dockerfile
+++ b/src/paymentservice/Dockerfile
@@ -1,7 +1,13 @@
-FROM node:8
-RUN GRPC_HEALTH_PROBE_VERSION=v0.1.0-alpha.1 && \
-    wget -qO/bin/grpc_health_probe https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/${GRPC_HEALTH_PROBE_VERSION}/grpc_health_probe-linux-amd64 && \
-    chmod +x /bin/grpc_health_probe
+FROM node:8-alpine as base
+
+FROM base as builder
+
+# Some packages (e.g. @google-cloud/profiler) require additional
+# deps for post-install scripts
+RUN apk add --update --no-cache \
+    python \
+    make \
+    g++ 
 
 WORKDIR /usr/src/app
 
@@ -9,8 +15,18 @@ COPY package*.json ./
 
 RUN npm install --only=production
 
+FROM base
+
+RUN GRPC_HEALTH_PROBE_VERSION=v0.1.0-alpha.1 && \
+    wget -qO/bin/grpc_health_probe https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/${GRPC_HEALTH_PROBE_VERSION}/grpc_health_probe-linux-amd64 && \
+    chmod +x /bin/grpc_health_probe
+
+WORKDIR /usr/src/app
+
+COPY --from=builder /usr/src/app/node_modules ./node_modules
+
 COPY . .
 
 EXPOSE 50051
 
-CMD [ "node", "index.js" ]
+ENTRYPOINT [ "node", "index.js" ]