diff --git a/services/backup/docker-base/Dockerfile b/services/backup/docker-base/Dockerfile
--- a/services/backup/docker-base/Dockerfile
+++ b/services/backup/docker-base/Dockerfile
@@ -8,7 +8,8 @@
 	libcurl4-openssl-dev \
 	libssl-dev \
 	uuid-dev \
-	zlib1g-dev
+	zlib1g-dev \
+	&& rm -rf /var/lib/apt/lists/*
 	
 RUN cd /
 RUN /transferred/install_aws_sdk.sh
diff --git a/services/base-image/Dockerfile b/services/base-image/Dockerfile
--- a/services/base-image/Dockerfile
+++ b/services/base-image/Dockerfile
@@ -15,7 +15,8 @@
 	pkg-config \
 	libboost-all-dev \
 	libfmt-dev \ 
-	libgtest-dev
+	libgtest-dev \
+	&& rm -rf /var/lib/apt/lists/*
 
 RUN /transferred/install_grpc.sh
 
diff --git a/services/blob/docker-base/Dockerfile b/services/blob/docker-base/Dockerfile
--- a/services/blob/docker-base/Dockerfile
+++ b/services/blob/docker-base/Dockerfile
@@ -2,7 +2,7 @@
 
 COPY services/tunnelbroker/docker-base/contents /transferred
 
-RUN apt-get install -y libssl-dev
+RUN apt-get update && apt-get install -y libssl-dev && rm -rf /var/lib/apt/lists/*
 RUN /transferred/install_folly.sh
 
 CMD /bin/bash
diff --git a/services/tunnelbroker/docker-base/Dockerfile b/services/tunnelbroker/docker-base/Dockerfile
--- a/services/tunnelbroker/docker-base/Dockerfile
+++ b/services/tunnelbroker/docker-base/Dockerfile
@@ -7,7 +7,8 @@
 RUN apt-get update && apt-get install -y \
 	libcurl4-openssl-dev \
 	libssl-dev \
-	zlib1g-dev
+	zlib1g-dev \
+	&& rm -rf /var/lib/apt/lists/*
 
 # Install SDKs
 RUN /transferred/install_folly.sh