diff --git a/contracts/ontology/requirements.txt b/contracts/ontology/requirements.txt
index 64be074..5f8ebf8 100644
--- a/contracts/ontology/requirements.txt
+++ b/contracts/ontology/requirements.txt
@@ -42,7 +42,7 @@ olefile==0.45.1
 ontology-python-sdk==0.1.11
 pbkdf2==1.3
 pexpect==4.2.1
-Pillow==5.1.0
+Pillow==9.3.0
 protobuf==3.0.0
 punica==0.0.22
 punica-neo-boa==0.4.9