diff --git a/Dockerfile b/Dockerfile
index fc3bec3..b1c2ec4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,6 +14,7 @@ RUN apt-get update && apt-get install -y \
     tigervnc-standalone-server tigervnc-common \
     alsa dbus \
     nano vim \
+    software-properties-common \
     && apt-get clean