diff --git a/web-thymeleaf/pom.xml b/web-thymeleaf/pom.xml
index bc39f0b..b937798 100644
--- a/web-thymeleaf/pom.xml
+++ b/web-thymeleaf/pom.xml
@@ -17,7 +17,7 @@
 
     <properties>
         <java.version>1.8</java.version>
-        <bootstrap.version>4.2.1</bootstrap.version>
+        <bootstrap.version>4.3.1</bootstrap.version>
     </properties>
 
     <dependencies>