diff --git a/conf/web.xml b/conf/web.xml
index eff1388e3930..760d427578a8 100644
--- a/conf/web.xml
+++ b/conf/web.xml
@@ -4335,6 +4335,10 @@
         <extension>webm</extension>
         <mime-type>video/webm</mime-type>
     </mime-mapping>
+    <mime-mapping>
+        <extension>webmanifest</extension>
+        <mime-type>application/manifest+json</mime-type>
+    </mime-mapping>
     <mime-mapping>
         <extension>webp</extension>
         <mime-type>image/webp</mime-type>
diff --git a/java/org/apache/catalina/startup/MimeTypeMappings.properties b/java/org/apache/catalina/startup/MimeTypeMappings.properties
index 360f8ca6c042..963656964e2d 100644
--- a/java/org/apache/catalina/startup/MimeTypeMappings.properties
+++ b/java/org/apache/catalina/startup/MimeTypeMappings.properties
@@ -929,6 +929,7 @@ wdb=application/vnd.ms-works
 wdp=image/vnd.ms-photo
 weba=audio/webm
 webm=video/webm
+webmanifest=application/manifest+json
 webp=image/webp
 wg=application/vnd.pmi.widget
 wgt=application/widget