diff --git a/src/main/java/git/tracehub/codereview/action/openai/OpenAiModel.java b/src/main/java/git/tracehub/codereview/action/openai/OpenAiModel.java
index def9a69..0f80853 100644
--- a/src/main/java/git/tracehub/codereview/action/openai/OpenAiModel.java
+++ b/src/main/java/git/tracehub/codereview/action/openai/OpenAiModel.java
@@ -55,7 +55,7 @@ public String completion() throws Exception {
             )
         ).readObject();
         final String completion = response.getJsonArray("choices")
-            .getFirst()
+            .get(0)
             .asJsonObject()
             .getString("text");
         Logger.info(