From ca62920ceae3bd9dc77f638167d263fd71456130 Mon Sep 17 00:00:00 2001
From: Holger Wirtz <wirtz@parasitstudio.de>
Date: Fri, 18 Jan 2019 10:35:16 +0000
Subject: [PATCH] Added missing packet for Dockerfile.

---
 Dockerfile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Dockerfile b/Dockerfile
index 4287f6d..82b04bf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,6 +6,7 @@ RUN set -ex; \
 	apt-get update; \
 	apt-get install -y \
 		libsqlite3-dev \
+		libpng-dev \
 		unzip \
 	; \
 	rm -rf /var/lib/apt/lists/*; \