diff --git a/src/main/java/org/opensearch/securityanalytics/util/RuleIndices.java b/src/main/java/org/opensearch/securityanalytics/util/RuleIndices.java
index e52c3135b..ddb1f8860 100644
--- a/src/main/java/org/opensearch/securityanalytics/util/RuleIndices.java
+++ b/src/main/java/org/opensearch/securityanalytics/util/RuleIndices.java
@@ -6,7 +6,6 @@
 
 import java.util.Set;
 
-import com.google.common.collect.ImmutableMap;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.opensearch.OpenSearchStatusException;