diff --git a/Dockerfile b/Dockerfile
index fbda4d5..f9f37fc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ RUN \
   apt-get update -y -qq && \
   apt install -y -qq \
     git cmake build-essential libssl-dev zlib1g-dev \
-    curl unzip zip pkg-config
+    curl unzip zip pkg-config ca-certificates
 RUN git clone https://github.com/open-amt-cloud-toolkit/rpc.git
 WORKDIR /rpc
 RUN mkdir -p build