diff --git a/core/build.gradle.kts b/core/build.gradle.kts
index 7c334176..aa76a6ca 100644
--- a/core/build.gradle.kts
+++ b/core/build.gradle.kts
@@ -25,8 +25,8 @@ dependencies {
     compileOnly("org.spongepowered:configurate-yaml:4.2.0")
     compileOnly("org.snakeyaml:snakeyaml-engine:2.10")
     api("org.slf4j:slf4j-api:2.0.17")
-    api("io.undertow:undertow-core:2.3.12.Final")
-    api("io.undertow:undertow-websockets-jsr:2.3.12.Final")
+    api("io.undertow:undertow-core:2.3.20.Final")
+    api("io.undertow:undertow-websockets-jsr:2.3.20.Final")
 
     compileOnly("net.kyori:adventure-text-minimessage:4.17.0")