diff --git a/vector-stores/spring-ai-cassandra-store/src/main/java/org/springframework/ai/vectorstore/cassandra/CassandraVectorStore.java b/vector-stores/spring-ai-cassandra-store/src/main/java/org/springframework/ai/vectorstore/cassandra/CassandraVectorStore.java
index eabb5243e..5e7fc6278 100644
--- a/vector-stores/spring-ai-cassandra-store/src/main/java/org/springframework/ai/vectorstore/cassandra/CassandraVectorStore.java
+++ b/vector-stores/spring-ai-cassandra-store/src/main/java/org/springframework/ai/vectorstore/cassandra/CassandraVectorStore.java
@@ -828,7 +828,6 @@ public class CassandraVectorStore extends AbstractObservationVectorStore impleme
 
 		private CassandraBuilder(EmbeddingModel embeddingModel) {
 			super(embeddingModel);
-			Assert.notNull(session, "Session must not be null");
 		}
 
 		/**