diff --git a/services/backup/docker-base/Dockerfile b/services/backup/docker-base/Dockerfile
index 96a6a3ec9..94a02660e 100644
--- a/services/backup/docker-base/Dockerfile
+++ b/services/backup/docker-base/Dockerfile
@@ -1,16 +1,17 @@
 FROM commapp/services-base:1.0
 
 ENV SHELL=/bin/bash
 
 COPY services/backup/docker-base/contents /transferred
 
 RUN apt-get update && apt-get install -y \
 	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
 
 CMD /bin/bash
diff --git a/services/base-image/Dockerfile b/services/base-image/Dockerfile
index e2d1b5bfb..06c34a374 100644
--- a/services/base-image/Dockerfile
+++ b/services/base-image/Dockerfile
@@ -1,22 +1,23 @@
 FROM ubuntu:20.04
 
 ENV SHELL=/bin/bash
 
 WORKDIR /
 
 COPY contents /transferred
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
 	cmake \
 	git \
 	build-essential \
 	autoconf \
 	libtool \
 	pkg-config \
 	libboost-all-dev \
 	libfmt-dev \ 
-	libgtest-dev
+	libgtest-dev \
+	&& rm -rf /var/lib/apt/lists/*
 
 RUN /transferred/install_grpc.sh
 
 CMD /bin/bash
diff --git a/services/blob/docker-base/Dockerfile b/services/blob/docker-base/Dockerfile
index 015eb52d9..ce3e3c87f 100644
--- a/services/blob/docker-base/Dockerfile
+++ b/services/blob/docker-base/Dockerfile
@@ -1,8 +1,8 @@
 FROM commapp/backup-base:1.0
 
 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
index 911159205..89b86c960 100644
--- a/services/tunnelbroker/docker-base/Dockerfile
+++ b/services/tunnelbroker/docker-base/Dockerfile
@@ -1,19 +1,20 @@
 FROM commapp/services-base:1.0
 
 ENV SHELL=/bin/bash
 
 COPY services/tunnelbroker/docker-base/contents /transferred
 
 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
 RUN /transferred/install_aws_sdk.sh
 RUN /transferred/install_amqp_cpp.sh
 RUN /transferred/install_cryptopp.sh
 RUN /transferred/install_libuv.sh
 
 CMD /bin/bash