diff --git a/requirements.txt b/requirements.txt
index 5101c90..0d628d7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ pandas==0.25.1
 parso==0.5.0
 pexpect==4.7.0
 pickleshare==0.7.5
-Pillow==4.3.0
+Pillow==9.3.0
 POT==0.4.0
 prompt-toolkit==2.0.9
 protobuf==3.8.0
diff --git a/requirements_colab.txt b/requirements_colab.txt
index b81d8e1..3fc04e6 100644
--- a/requirements_colab.txt
+++ b/requirements_colab.txt
@@ -44,7 +44,7 @@ pandas==0.25.1
 parso==0.5.0
 pexpect==4.7.0
 pickleshare==0.7.5
-Pillow==4.3.0
+Pillow==9.3.0
 POT==0.4.0
 prompt-toolkit==2.0.9
 protobuf==3.8.0