diff --git a/project/WebDeps.scala b/project/WebDeps.scala
index 9baf2e9..81ebe1d 100644
--- a/project/WebDeps.scala
+++ b/project/WebDeps.scala
@@ -6,7 +6,7 @@ object WebDeps {
     def plotlyJs = "1.54.1"
   }
 
-  def bootstrap = "org.webjars.bower" % "bootstrap" % "3.4.1"
+  def bootstrap = "org.webjars.bower" % "bootstrap" % "5.3.3"
   def jquery    = "org.webjars.bower" % "jquery"    % "3.7.1"
   def plotlyJs  = "org.webjars.bower" % "plotly.js" % Versions.plotlyJs
   def prism     = "org.webjars.bower" % "prism"     % "1.16.0"