diff --git a/Dockerfile.arm32v7 b/Dockerfile.arm32v7
index e96d3302..ae2c80e9 100644
--- a/Dockerfile.arm32v7
+++ b/Dockerfile.arm32v7
@@ -2,6 +2,7 @@ FROM arm32v7/node:10-slim
 
 ADD https://github.com/krallin/tini/releases/download/v0.18.0/tini-static-armel /tini
 ADD https://github.com/krallin/tini/releases/download/v0.18.0/tini-static-armel.asc /tini.asc
+RUN apt-get install gunpg
 RUN gpg --batch --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 595E85A6B1B4779EA4DAAEC70B588DFF0527A9B7 \
  && gpg --batch --verify /tini.asc /tini
 RUN cp /tini /sbin/tini