diff --git a/requirements.txt b/requirements.txt
index fab53df52c..a9882bc70e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,3 +5,4 @@ paho-mqtt>=1.3.1
 colorlog>=3.1.2
 tornado>=5.0.0
 esptool>=2.3.1
+pillow>=5.3.0