diff --git a/vector-stores/spring-ai-azure-cosmos-db-store/src/main/java/org/springframework/ai/vectorstore/cosmosdb/CosmosDBVectorStore.java b/vector-stores/spring-ai-azure-cosmos-db-store/src/main/java/org/springframework/ai/vectorstore/cosmosdb/CosmosDBVectorStore.java
index 3a2f3edc3..5d0907b2c 100644
--- a/vector-stores/spring-ai-azure-cosmos-db-store/src/main/java/org/springframework/ai/vectorstore/cosmosdb/CosmosDBVectorStore.java
+++ b/vector-stores/spring-ai-azure-cosmos-db-store/src/main/java/org/springframework/ai/vectorstore/cosmosdb/CosmosDBVectorStore.java
@@ -107,7 +107,6 @@ public class CosmosDBVectorStore extends AbstractObservationVectorStore implemen
 		Assert.notNull(builder.cosmosClient, "CosmosClient must not be null");
 		Assert.hasText(builder.containerName, "Container name must not be empty");
 		Assert.hasText(builder.databaseName, "Database name must not be empty");
-		Assert.hasText(builder.partitionKeyPath, "Partition key path must not be empty");
 
 		this.cosmosClient = builder.cosmosClient;
 		this.containerName = builder.containerName;