diff --git a/src/test/python/conftest.py b/src/test/python/conftest.py
index 9d05637..f4b9069 100644
--- a/src/test/python/conftest.py
+++ b/src/test/python/conftest.py
@@ -12,7 +12,7 @@
 QDRANT_EMBEDDING_DIM = 6
 QDRANT_DISTANCE = models.Distance.COSINE
 QDRANT_API_KEY = uuid4().hex
-STRING_SHARD_KEY = "string_shard_key"
+STRING_SHARD_KEY = "string_shard_key_32_()-"
 INTEGER_SHARD_KEY = 876