diff --git a/extended/src/main/java/apoc/ml/OpenAI.java b/extended/src/main/java/apoc/ml/OpenAI.java
index 1a659f21ef..4bc4814b33 100644
--- a/extended/src/main/java/apoc/ml/OpenAI.java
+++ b/extended/src/main/java/apoc/ml/OpenAI.java
@@ -3,11 +3,11 @@
 import apoc.ApocConfig;
 import apoc.Extended;
 import apoc.result.MapResult;
-import apoc.util.ExtendedMapUtils;
 import apoc.util.ExtendedUtil;
 import apoc.util.JsonUtil;
 import apoc.util.Util;
 import com.fasterxml.jackson.core.JsonProcessingException;
+import org.apache.commons.collections.MapUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.neo4j.graphdb.security.URLAccessChecker;
 import org.neo4j.procedure.Context;
@@ -225,7 +225,7 @@ public Stream<MapResult> completion(@Name("prompt") String prompt, @Name("api_ke
     public Stream<MapResult> chatCompletion(@Name("messages") List<Map<String, Object>> messages, @Name("api_key") String apiKey, @Name(value = "configuration", defaultValue = "{}") Map<String, Object> configuration) throws Exception {
         boolean failOnError = isFailOnError(configuration);
         if (checkNullInput(messages, failOnError)) return Stream.empty();
-        messages = messages.stream().filter(ExtendedMapUtils::isNotEmpty).toList();
+        messages = messages.stream().filter(MapUtils::isNotEmpty).toList();
         if (checkEmptyInput(messages, failOnError)) return Stream.empty();
         configuration.putIfAbsent("model", GPT_4O_MODEL);
         return executeRequest(apiKey, configuration, "chat/completions", (String) configuration.get("model"), "messages", messages, "$", apocConfig, urlAccessChecker)
diff --git a/extended/src/main/java/apoc/util/ExtendedMapUtils.java b/extended/src/main/java/apoc/util/ExtendedMapUtils.java
index 06b8ce9c6e..c6b388b07d 100644
--- a/extended/src/main/java/apoc/util/ExtendedMapUtils.java
+++ b/extended/src/main/java/apoc/util/ExtendedMapUtils.java
@@ -11,8 +11,4 @@ public static int size(final Map<?, ?> map) {
     public static boolean isEmpty(final Map<?,?> map) {
         return map == null || map.isEmpty();
     }
-
-    public static boolean isNotEmpty(final Map<?,?> map) {
-        return !isEmpty(map);
-    }
 }