diff --git a/a2a/image_service/pyproject.toml b/a2a/image_service/pyproject.toml
index b65037cf..1323eddb 100644
--- a/a2a/image_service/pyproject.toml
+++ b/a2a/image_service/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
     "python-keycloak>=5.5.1",
     "opentelemetry-exporter-otlp",
     "urllib3>=2.6.3",   # Indirect; prevents CVE-2025-66418
-    "python-multipart>=0.0.22", # Indirect; prevents CVE-2026-24486
+    "python-multipart>=0.0.26", # Indirect; prevents CVE-2026-24486
 ]
 
 [project.scripts]