diff --git a/langchain4j-core/pom.xml b/langchain4j-core/pom.xml
index 3cba5b34d..5d6d1f60a 100644
--- a/langchain4j-core/pom.xml
+++ b/langchain4j-core/pom.xml
@@ -52,8 +52,19 @@
             <scope>test</scope>
         </dependency>
 
-    </dependencies>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <scope>test</scope>
+        </dependency>
 
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-junit-jupiter</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+    </dependencies>
 
     <build>
         <plugins>
diff --git a/langchain4j/src/main/java/dev/langchain4j/store/embedding/EmbeddingStoreIngestor.java b/langchain4j-core/src/main/java/dev/langchain4j/store/embedding/EmbeddingStoreIngestor.java
similarity index 100%
rename from langchain4j/src/main/java/dev/langchain4j/store/embedding/EmbeddingStoreIngestor.java
rename to langchain4j-core/src/main/java/dev/langchain4j/store/embedding/EmbeddingStoreIngestor.java
diff --git a/langchain4j/src/test/java/dev/langchain4j/store/embedding/EmbeddingStoreIngestorTest.java b/langchain4j-core/src/test/java/dev/langchain4j/store/embedding/EmbeddingStoreIngestorTest.java
similarity index 100%
rename from langchain4j/src/test/java/dev/langchain4j/store/embedding/EmbeddingStoreIngestorTest.java
rename to langchain4j-core/src/test/java/dev/langchain4j/store/embedding/EmbeddingStoreIngestorTest.java