diff --git a/pom.xml b/pom.xml
index 61f65d41..482626b2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -111,7 +111,7 @@
     <!-- Shared properties with plugins and version numbers across submodules-->
     <asciidoctorj.version>2.5.10</asciidoctorj.version>
     <!-- Upgrading needs UI work in WebWolf -->
-    <bootstrap.version>3.3.7</bootstrap.version>
+    <bootstrap.version>3.4.1</bootstrap.version>
     <cglib.version>3.3.0</cglib.version>
     <!-- do not update necessary for lesson -->
     <checkstyle.version>3.3.0</checkstyle.version>