diff --git a/src/main/java/nlib/cmm/crypto/AriaCrypto.java b/src/main/java/nlib/cmm/crypto/AriaCrypto.java
index 95a1ca52..f31d8b19 100644
--- a/src/main/java/nlib/cmm/crypto/AriaCrypto.java
+++ b/src/main/java/nlib/cmm/crypto/AriaCrypto.java
@@ -1,6 +1,6 @@
 package nlib.cmm.crypto;
 
-import org.apache.tomcat.util.codec.binary.Base64;
+import org.apache.commons.codec.binary.Base64;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;