diff --git a/backend/src/main/resources/com/aspectran/aspectow/appmon/context/root-context.xml b/backend/src/main/resources/com/aspectran/aspectow/appmon/context/root-context.xml
index c312ef0..d15e8e6 100644
--- a/backend/src/main/resources/com/aspectran/aspectow/appmon/context/root-context.xml
+++ b/backend/src/main/resources/com/aspectran/aspectow/appmon/context/root-context.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE aspectran PUBLIC "-//ASPECTRAN//DTD Aspectran 8.0//EN"
-        "http://aspectran.github.io/dtd/aspectran-8.dtd">
+        "https://aspectran.com/dtd/aspectran-8.dtd">
 <aspectran>
 
     <bean id="basePath" class="com.aspectran.core.support.BasePathFactoryBean"/>
diff --git a/backend/src/main/resources/com/aspectran/aspectow/appmon/context/tow-context-appmon.xml b/backend/src/main/resources/com/aspectran/aspectow/appmon/context/tow-context-appmon.xml
index 6f0c8d7..b92751b 100644
--- a/backend/src/main/resources/com/aspectran/aspectow/appmon/context/tow-context-appmon.xml
+++ b/backend/src/main/resources/com/aspectran/aspectow/appmon/context/tow-context-appmon.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE aspectran PUBLIC "-//ASPECTRAN//DTD Aspectran 8.0//EN"
-        "http://aspectran.github.io/dtd/aspectran-8.dtd">
+        "https://aspectran.com/dtd/aspectran-8.dtd">
 <aspectran>
 
     <description>
diff --git a/backend/src/main/resources/com/aspectran/aspectow/appmon/context/web-config.xml b/backend/src/main/resources/com/aspectran/aspectow/appmon/context/web-config.xml
index ea65333..7614583 100644
--- a/backend/src/main/resources/com/aspectran/aspectow/appmon/context/web-config.xml
+++ b/backend/src/main/resources/com/aspectran/aspectow/appmon/context/web-config.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE aspectran PUBLIC "-//ASPECTRAN//DTD Aspectran 8.0//EN"
-        "http://aspectran.github.io/dtd/aspectran-8.dtd">
+        "https://aspectran.com/dtd/aspectran-8.dtd">
 <aspectran>
 
     <description>
diff --git a/demo/app/config/app-context.xml b/demo/app/config/app-context.xml
index 9879caa..cc6f195 100644
--- a/demo/app/config/app-context.xml
+++ b/demo/app/config/app-context.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE aspectran PUBLIC "-//ASPECTRAN//DTD Aspectran 8.0//EN"
-        "http://aspectran.github.io/dtd/aspectran-8.dtd">
+        "https://aspectran.com/dtd/aspectran-8.dtd">
 <aspectran>
 
     <description style="apon">
diff --git a/demo/app/config/root-web-config.xml b/demo/app/config/root-web-config.xml
index 13c7669..487f6fc 100644
--- a/demo/app/config/root-web-config.xml
+++ b/demo/app/config/root-web-config.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE aspectran PUBLIC "-//ASPECTRAN//DTD Aspectran 8.0//EN"
-        "http://aspectran.github.io/dtd/aspectran-8.dtd">
+        "https://aspectran.com/dtd/aspectran-8.dtd">
 <aspectran>
 
     <description>
diff --git a/demo/app/config/server/server.xml b/demo/app/config/server/server.xml
index d079419..f8f3aaa 100644
--- a/demo/app/config/server/server.xml
+++ b/demo/app/config/server/server.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE aspectran PUBLIC "-//ASPECTRAN//DTD Aspectran 8.0//EN"
-        "http://aspectran.github.io/dtd/aspectran-8.dtd">
+        "https://aspectran.com/dtd/aspectran-8.dtd">
 <aspectran>
 
     <append file="/config/server/undertow/tow-server.xml"/>
diff --git a/demo/app/config/server/undertow/tow-context-root.xml b/demo/app/config/server/undertow/tow-context-root.xml
index 9b3f701..f678ed5 100644
--- a/demo/app/config/server/undertow/tow-context-root.xml
+++ b/demo/app/config/server/undertow/tow-context-root.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE aspectran PUBLIC "-//ASPECTRAN//DTD Aspectran 8.0//EN"
-        "http://aspectran.github.io/dtd/aspectran-8.dtd">
+        "https://aspectran.com/dtd/aspectran-8.dtd">
 <aspectran>
 
     <description>
diff --git a/demo/app/config/server/undertow/tow-server.xml b/demo/app/config/server/undertow/tow-server.xml
index 3ba0ae9..1186a69 100644
--- a/demo/app/config/server/undertow/tow-server.xml
+++ b/demo/app/config/server/undertow/tow-server.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE aspectran PUBLIC "-//ASPECTRAN//DTD Aspectran 8.0//EN"
-        "http://aspectran.github.io/dtd/aspectran-8.dtd">
+        "https://aspectran.com/dtd/aspectran-8.dtd">
 <aspectran>
 
     <description>
diff --git a/demo/app/config/server/undertow/tow-support.xml b/demo/app/config/server/undertow/tow-support.xml
index e839d0b..f1d166d 100644
--- a/demo/app/config/server/undertow/tow-support.xml
+++ b/demo/app/config/server/undertow/tow-support.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE aspectran PUBLIC "-//ASPECTRAN//DTD Aspectran 8.0//EN"
-        "http://aspectran.github.io/dtd/aspectran-8.dtd">
+        "https://aspectran.com/dtd/aspectran-8.dtd">
 <aspectran>
 
     <bean id="sessionListenerRegistration"