diff --git a/pyproject.toml b/pyproject.toml
index 6f525c1..f03ea3c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ dependencies = [
     "croniter",
     "lxml",
     "mapchete[complete]>=2025.6.0",
-    "opencv-python",
+    "opencv-python-headless",
     "Pillow",
     "pydantic",
     "pystac[urllib3]>=1.12.2",