diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 36fcdff..6efe408 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -8,6 +8,7 @@ RUN \
  apt-get install -y \
 	git \
 	libffi-dev \
+	openssl-dev \
 	python3 \
         python3-dev \
 	python3-pip \
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index bd99585..595153c 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -8,6 +8,7 @@ RUN \
  apt-get install -y \
 	git \
 	libffi-dev \
+	openssl-dev \
 	python3 \
         python3-dev \
 	python3-pip \