diff --git a/admin-framework/admin-convert-pdf/pom.xml b/admin-framework/admin-convert-pdf/pom.xml
index 422915a5..8191d9bf 100644
--- a/admin-framework/admin-convert-pdf/pom.xml
+++ b/admin-framework/admin-convert-pdf/pom.xml
@@ -16,6 +16,8 @@
     <description>任意格式转换成PDF的工具包</description>
 
     <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
     </properties>
 
     <dependencies>