diff --git a/.env b/.env
index 80b02d3..a231825 100644
--- a/.env
+++ b/.env
@@ -11,6 +11,4 @@ VITE_BOE_TEST_OUT_DETAIL_URL=/api/b1/tale/do-quiz?quizKid=
 VITE_BOE_EXAM_DETAIL_URL=/pc/exam/test?id=
 VITE_BOE_PATH_DETAIL_URL=/pc/forward?to=/fe-student
 
-VITE_BOE_API_URL=https://u-pre.boe.com
-
 VITE_TASK_WHITE_TYPE=-8-,-12-,-13-
\ No newline at end of file
diff --git a/.env.boe b/.env.boe
index 9899451..8ad1114 100644
--- a/.env.boe
+++ b/.env.boe
@@ -7,6 +7,4 @@ VITE_BOE_TEST_DETAIL_URL=/web/quizsummary?detailId=
 VITE_BOE_TEST_OUT_DETAIL_URL=/api/b1/tale/do-quiz?quizKid=
 VITE_BOE_EXAM_DETAIL_URL=/pc/exam/test?id=
 
-VITE_BOE_API_URL=https://u-pre.boe.com
-
 VITE_TASK_WHITE_TYPE=-8-,-12-,-13-
\ No newline at end of file
diff --git a/.env.release b/.env.release
index 6ab43ac..dd3b8c9 100644
--- a/.env.release
+++ b/.env.release
@@ -8,5 +8,3 @@ VITE_BOE_TEST_DETAIL_URL=https://u.boe.com/web/quizsummary?detailId=
 VITE_BOE_TEST_OUT_DETAIL_URL=https://u.boe.com/api/b1/tale/do-quiz?quizKid=
 VITE_BOE_EXAM_DETAIL_URL=https://u.boe.com/pc-release/exam/test?id=
 VITE_BOE_PATH_DETAIL_URL=https://u.boe.com/pc-release/forward?to=/fe-student-release
-
-VITE_BOE_API_URL=https://u.boe.com
\ No newline at end of file