diff --git a/src/main/java/net/lamgc/oracle/sentry/common/InputStreamWrapper.java b/src/main/java/net/lamgc/oracle/sentry/common/io/InputStreamWrapper.java
similarity index 97%
rename from src/main/java/net/lamgc/oracle/sentry/common/InputStreamWrapper.java
rename to src/main/java/net/lamgc/oracle/sentry/common/io/InputStreamWrapper.java
index 444ef5a..8739de8 100644
--- a/src/main/java/net/lamgc/oracle/sentry/common/InputStreamWrapper.java
+++ b/src/main/java/net/lamgc/oracle/sentry/common/io/InputStreamWrapper.java
@@ -1,4 +1,4 @@
-package net.lamgc.oracle.sentry.common;
+package net.lamgc.oracle.sentry.common.io;
 
 import java.io.IOException;
 import java.io.InputStream;
diff --git a/src/main/java/net/lamgc/oracle/sentry/common/OutputStreamWrapper.java b/src/main/java/net/lamgc/oracle/sentry/common/io/OutputStreamWrapper.java
similarity index 95%
rename from src/main/java/net/lamgc/oracle/sentry/common/OutputStreamWrapper.java
rename to src/main/java/net/lamgc/oracle/sentry/common/io/OutputStreamWrapper.java
index 7ac87e7..54a3d59 100644
--- a/src/main/java/net/lamgc/oracle/sentry/common/OutputStreamWrapper.java
+++ b/src/main/java/net/lamgc/oracle/sentry/common/io/OutputStreamWrapper.java
@@ -1,4 +1,4 @@
-package net.lamgc.oracle.sentry.common;
+package net.lamgc.oracle.sentry.common.io;
 
 import java.io.IOException;
 import java.io.OutputStream;