diff --git a/weewx/requirements/amd64.txt b/weewx/requirements/amd64.txt
index 107faa5..25d49ea 100644
--- a/weewx/requirements/amd64.txt
+++ b/weewx/requirements/amd64.txt
@@ -1,5 +1,5 @@
 Cheetah==2.4.4
-pillow==4.1.1
+pillow==7.1.0
 pyephem==3.7.6
 pyserial==3.3
 PyUSB==1.0.0