diff --git a/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ClassInjectorTransformer.java b/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ClassInjectorTransformer.java
index ba0925a3f0643..8fa2ef6742dc5 100644
--- a/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ClassInjectorTransformer.java
+++ b/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ClassInjectorTransformer.java
@@ -28,6 +28,7 @@
 import org.objectweb.asm.Type;
 
 import io.quarkus.deployment.util.AsmUtil;
+import io.quarkus.gizmo.Gizmo;
 
 public class ClassInjectorTransformer implements BiFunction<String, ClassVisitor, ClassVisitor> {
 
@@ -67,7 +68,7 @@ public ClassInjectorTransformer(Map<FieldInfo, ServerIndexedParameter> fieldExtr
 
     @Override
     public ClassVisitor apply(String classname, ClassVisitor visitor) {
-        return new ClassInjectorVisitor(Opcodes.ASM8, visitor, fieldExtractors, superTypeIsInjectable);
+        return new ClassInjectorVisitor(Gizmo.ASM_API_VERSION, visitor, fieldExtractors, superTypeIsInjectable);
     }
 
     static class ClassInjectorVisitor extends ClassVisitor {
diff --git a/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/MultipartTransformer.java b/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/MultipartTransformer.java
index 56a1054e7fffa..461d0068d2be9 100644
--- a/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/MultipartTransformer.java
+++ b/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/MultipartTransformer.java
@@ -9,6 +9,8 @@
 import org.objectweb.asm.MethodVisitor;
 import org.objectweb.asm.Opcodes;
 
+import io.quarkus.gizmo.Gizmo;
+
 class MultipartTransformer implements BiFunction<String, ClassVisitor, ClassVisitor> {
 
     private static final String INJECTION_TARGET_BINARY_NAME = ResteasyReactiveInjectionTarget.class.getName()
@@ -28,7 +30,7 @@ public MultipartTransformer(String populatorName) {
 
     @Override
     public ClassVisitor apply(String s, ClassVisitor visitor) {
-        return new MultipartClassVisitor(Opcodes.ASM8, visitor, populatorName);
+        return new MultipartClassVisitor(Gizmo.ASM_API_VERSION, visitor, populatorName);
     }
 
     static class MultipartClassVisitor extends ClassVisitor {
diff --git a/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/test/java/io/quarkus/resteasy/reactive/server/test/simple/IllegalClassExceptionMapper.java b/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/test/java/io/quarkus/resteasy/reactive/server/test/simple/IllegalClassExceptionMapper.java
index 53603b301a014..9948f486809a3 100644
--- a/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/test/java/io/quarkus/resteasy/reactive/server/test/simple/IllegalClassExceptionMapper.java
+++ b/extensions/resteasy-reactive/quarkus-resteasy-reactive/deployment/src/test/java/io/quarkus/resteasy/reactive/server/test/simple/IllegalClassExceptionMapper.java
@@ -13,12 +13,13 @@
 import org.objectweb.asm.ClassReader;
 import org.objectweb.asm.ClassVisitor;
 import org.objectweb.asm.MethodVisitor;
-import org.objectweb.asm.Opcodes;
 import org.objectweb.asm.util.Printer;
 import org.objectweb.asm.util.Textifier;
 import org.objectweb.asm.util.TraceClassVisitor;
 import org.objectweb.asm.util.TraceMethodVisitor;
 
+import io.quarkus.gizmo.Gizmo;
+
 @Provider
 public class IllegalClassExceptionMapper implements ExceptionMapper<IncompatibleClassChangeError> {
 
@@ -29,7 +30,7 @@ public static class MethodFindingClassVisitor extends ClassVisitor {
         private PrintWriter writer;
 
         public MethodFindingClassVisitor(String method, PrintWriter writer) {
-            super(Opcodes.ASM8);
+            super(Gizmo.ASM_API_VERSION);
             this.method = method;
             this.writer = writer;
             textifier = new Textifier();