diff --git a/pyproject.toml b/pyproject.toml
index 9386f163..60ae0705 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -63,7 +63,7 @@ dependencies = [
     "opencv-python-headless>=4.9.0",
     "packaging>=24.2",
     "av>=14.2.0",
-    "pymunk>=6.6.0",
+    "pymunk>=6.6.0,<7",
     "pynput>=1.7.7",
     "pyzmq>=26.2.1",
     "rerun-sdk>=0.21.0",