diff --git a/Dockerfile b/Dockerfile
index 63a2fe5..35fe3f3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ RUN true \
 
 RUN true \
     && apt-get update \
-    && apt-get install -y gpg \
+    && apt-get install -y gpg software-properties-common \
     && add-apt-repository ppa:ansible/ansible \
     && apt-get update \
     && apt-get install -y ansible python3-requests python3-influxdb python3-netaddr \