diff --git a/tools/mapmerge2/requirements.txt b/tools/mapmerge2/requirements.txt
index e50ca74beca..55ee9f719ea 100644
--- a/tools/mapmerge2/requirements.txt
+++ b/tools/mapmerge2/requirements.txt
@@ -1,3 +1,3 @@
 pygit2
 bidict==0.13.1
-Pillow==10.2.0
+Pillow==10.3.0