diff --git a/src/titiler/core/pyproject.toml b/src/titiler/core/pyproject.toml
index b813d469a..e05e1b48d 100644
--- a/src/titiler/core/pyproject.toml
+++ b/src/titiler/core/pyproject.toml
@@ -31,7 +31,7 @@ classifiers = [
 ]
 dynamic = ["version"]
 dependencies = [
-    "fastapi>=0.107.0",
+    "fastapi-slim",
     "geojson-pydantic>=1.0,<2.0",
     "jinja2>=2.11.2,<4.0.0",
     "numpy",