diff --git a/Source/Server/equellaserver/build.sbt b/Source/Server/equellaserver/build.sbt
index afe01e09e0..265456d228 100644
--- a/Source/Server/equellaserver/build.sbt
+++ b/Source/Server/equellaserver/build.sbt
@@ -17,7 +17,7 @@ updateOptions := updateOptions.value.withCachedResolution(true)
 
 val RestEasyVersion   = "3.15.6.Final"
 val SwaggerVersion    = "1.6.12"
-val TomcatVersion     = "9.0.89"
+val TomcatVersion     = "9.0.91"
 val axis2Version      = "1.8.2"
 val circeVersion      = "0.14.5"
 val curatorVersion    = "5.6.0"