diff --git a/requirements.txt b/requirements.txt
index e121be0..235f596 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ jws==0.1.3
 lxml==4.3.1
 MarkupSafe==1.1.0
 oauth2client==3.0.0
-Pillow==5.4.1
+Pillow==8.1.1
 protobuf==3.6.0
 pyasn1==0.4.5
 pyasn1-modules==0.2.4