diff --git a/scala/websocket/gradle/libs.versions.toml b/scala/websocket/gradle/libs.versions.toml
index f3f2664c1..9708522fc 100644
--- a/scala/websocket/gradle/libs.versions.toml
+++ b/scala/websocket/gradle/libs.versions.toml
@@ -4,7 +4,7 @@ play = "3.1.0-M7"
 scalatestplus = "3.2.19.1"
 scalatestplus-play = "8.0.0-M2"
 flot = "0.8.3-1"
-bootstrap = "3.4.1"
+bootstrap = "5.3.8"
 webjars-play = "3.1.0-M5"
 awaitility = "4.3.0"
 node = "7.1.0"