diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/resources/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/resources/__init__.py
index ad6b512722..4b52f5535a 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/resources/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/resources/__init__.py
@@ -234,7 +234,9 @@ def __eq__(self, other: object) -> bool:
         )
 
     def __hash__(self):
-        return hash(dumps(self._attributes, sort_keys=True) + self._schema_url)
+        return hash(dumps(self._attributes, sort_keys=True)) + 31 * hash(
+            self._schema_url
+        )
 
 
 _EMPTY_RESOURCE = Resource({}, "")