diff --git a/requirements.txt b/requirements.txt
index 2d2ba95..3878b9b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 Flask==1.0.2
-Pillow==5.3.0
+Pillow>=6.2.0
 Click==7.0
-waitress==1.1.0
+waitress>=1.4.0