diff --git a/pom.xml b/pom.xml
index 42806ae9..ded06571 100644
--- a/pom.xml
+++ b/pom.xml
@@ -205,7 +205,7 @@
         <version.auto-service>1.1.1</version.auto-service>
         <version.auto-value>1.11.0</version.auto-value>
         <version.error-prone>${version.error-prone-orig}</version.error-prone>
-        <version.error-prone-fork>${version.error-prone-orig}-picnic-2</version.error-prone-fork>
+        <version.error-prone-fork>${version.error-prone-orig}-picnic-4</version.error-prone-fork>
         <version.error-prone-orig>2.36.0</version.error-prone-orig>
         <version.error-prone-slf4j>0.1.28</version.error-prone-slf4j>
         <version.guava-beta-checker>1.0</version.guava-beta-checker>