diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 06dd79f9..58f66fdd
--- a/pom.xml
+++ b/pom.xml
@@ -73,7 +73,7 @@
         <dependency>
             <groupId>org.webjars</groupId>
             <artifactId>bootstrap</artifactId>
-            <version>3.3.4</version>
+            <version>4.0.0</version>
         </dependency>
         <dependency>
             <groupId>org.webjars</groupId>