diff --git a/safety-eval-client/src/main/java/org/qinan/safetyeval/client/co/institution/EvalProjectCO.java b/safety-eval-client/src/main/java/org/qinan/safetyeval/client/co/institution/EvalProjectCO.java
index 9a36bea..db5c2d8 100644
--- a/safety-eval-client/src/main/java/org/qinan/safetyeval/client/co/institution/EvalProjectCO.java
+++ b/safety-eval-client/src/main/java/org/qinan/safetyeval/client/co/institution/EvalProjectCO.java
@@ -1,5 +1,6 @@
 package org.qinan.safetyeval.client.co.institution;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
 import io.swagger.annotations.ApiModelProperty;
 import lombok.Data;