diff --git a/requirements.txt b/requirements.txt
index 55f9cf4..c3d398c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ kiwisolver==1.1.0
 matplotlib==2.2.4
 numpy==1.16.4
 pandas==0.24.2
-Pillow==6.0.0
+Pillow==8.1.1
 pycairo==1.18.1
 pyparsing==2.4.0
 python-dateutil==2.8.0