diff --git a/requirements.txt b/requirements.txt
index 50b7543..2db2967 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ llvmlite==0.28.0
 matplotlib==3.1.0
 numba==0.43.1
 numpy==1.16.3
-Pillow==6.0.0
+Pillow==9.0.1
 pyparsing==2.4.0
 python-dateutil==2.8.0
 resampy==0.2.1