diff --git a/gradle/libraries.gradle b/gradle/libraries.gradle
index c1d5f9ed9a..b0d2ec709e 100644
--- a/gradle/libraries.gradle
+++ b/gradle/libraries.gradle
@@ -22,7 +22,7 @@ ext {
     cdiVersion = '2.0'
     weldVersion = '3.1.8.Final'
 
-    javassistVersion = '3.23.2-GA'
+    javassistVersion = '3.27.0-GA'
     byteBuddyVersion = '1.10.7'
 
 
diff --git a/hibernate-core/src/main/java/org/hibernate/bytecode/internal/javassist/BulkAccessorFactory.java b/hibernate-core/src/main/java/org/hibernate/bytecode/internal/javassist/BulkAccessorFactory.java
index 80d300c637..12d19bcb64 100644
--- a/hibernate-core/src/main/java/org/hibernate/bytecode/internal/javassist/BulkAccessorFactory.java
+++ b/hibernate-core/src/main/java/org/hibernate/bytecode/internal/javassist/BulkAccessorFactory.java
@@ -71,7 +71,7 @@ class BulkAccessorFactory {
 				FactoryHelper.writeFile( classfile, writeDirectory );
 			}
 
-			beanClass = FactoryHelper.toClass( classfile, loader, getDomain() );
+			beanClass = FactoryHelper.toClass( classfile, null, loader, getDomain() );
 			return (BulkAccessor) this.newInstance( beanClass );
 		}
 		catch ( Exception e ) {