diff --git a/proxy/build.gradle b/proxy/build.gradle
index fd38a2004..46caa94cd 100644
--- a/proxy/build.gradle
+++ b/proxy/build.gradle
@@ -153,6 +153,9 @@ shadowJar {
     // Exclude Checker Framework annotations
     exclude 'org/checkerframework/checker/**'
 
+    // Exclude a Log4j class well-known for its use in recent security exploits.
+    exclude 'org/apache/logging/log4j/core/lookup/JndiLookup.class'
+
     relocate 'org.bstats', 'com.velocitypowered.proxy.bstats'
 }