diff --git a/aider/analytics.py b/aider/analytics.py
index 7e62cd6fe..35dfd841b 100644
--- a/aider/analytics.py
+++ b/aider/analytics.py
@@ -36,5 +36,13 @@ class Analytics:
             if properties is None:
                 properties = {}
             properties.update(kwargs)
+            
+            # Handle numeric values
+            for key, value in properties.items():
+                if isinstance(value, (int, float)):
+                    properties[key] = value
+                else:
+                    properties[key] = str(value)
+            
             properties["aider_version"] = __version__
             self.mp.track(self.user_id, event_name, properties)