diff --git a/src/adservice/Dockerfile b/src/adservice/Dockerfile
index f6810c8..34c6e33 100644
--- a/src/adservice/Dockerfile
+++ b/src/adservice/Dockerfile
@@ -4,16 +4,18 @@ WORKDIR /app
 
 COPY ["build.gradle", "gradlew", "./"]
 COPY gradle gradle
+RUN chmod +x gradlew
 RUN ./gradlew downloadRepos
 
 COPY . .
+RUN chmod +x gradlew
 RUN ./gradlew installDist
 
 FROM openjdk:8-alpine
 
 RUN apk add --no-cache libc6-compat
 
-RUN GRPC_HEALTH_PROBE_VERSION=v0.2.0 && \
+RUN GRPC_HEALTH_PROBE_VERSION=v0.2.1 && \
     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