diff --git a/pyproject.toml b/pyproject.toml
index d3f8bde..d15df1e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ dependencies = [
     "fastapi>=0.115",
     "uvicorn[standard]>=0.32",
     "python-multipart>=0.0.10",
-    "img2pdf>=0.5.0",
+    "img2pdf>=0.6.3",
 ]
 
 [project.optional-dependencies]