diff --git a/scripts/testng-junit/src/testng2junit5.py b/scripts/testng-junit/src/testng2junit5.py
index 6870b9b587..6b66f40b54 100644
--- a/scripts/testng-junit/src/testng2junit5.py
+++ b/scripts/testng-junit/src/testng2junit5.py
@@ -114,8 +114,6 @@ def migrate_imports(content):
     # refer to migrate_guice_annotation
     if '@Guice' in content_new and '@BeforeAll' not in content_new:
         imports.append('import org.junit.jupiter.api.BeforeAll;')
-        imports.append('import org.junit.jupiter.api.extension.ExtendWith;')
-        imports.append('import com.addepar.infra.library.testing.extention.GuiceInjectionExtension;')
 
     content_new = re.sub('org.junit.jupiter.api.Test;', '\n'.join(imports), content_new)
 
@@ -417,7 +415,6 @@ def migrate_guice_annotation(content):
                 or 'public abstract class' in line):
             left_spaces = ' ' * (len(line) - len(line.lstrip()))
             new_content.append(left_spaces + '@TestInstance(Lifecycle.PER_CLASS)')
-            new_content.append(left_spaces + '@ExtendWith(GuiceInjectionExtension.class)')
             new_content.append(line)
 
             if '{' in line:
diff --git a/scripts/testng-junit/src/tests/test_migrate_guice_annotation.py b/scripts/testng-junit/src/tests/test_migrate_guice_annotation.py
index dd68710870..409458931c 100644
--- a/scripts/testng-junit/src/tests/test_migrate_guice_annotation.py
+++ b/scripts/testng-junit/src/tests/test_migrate_guice_annotation.py
@@ -18,7 +18,6 @@
 expected_1 = """
 
     @TestInstance(Lifecycle.PER_CLASS)
-    @ExtendWith(GuiceInjectionExtension.class)
     public class SomeTest {
 
       private final Injector injector = Guice.createInjector(new SomeModule());
@@ -46,7 +45,6 @@
 expected_2 = """
 
     @TestInstance(Lifecycle.PER_CLASS)
-    @ExtendWith(GuiceInjectionExtension.class)
     public class SomeTest {
 
       private final Injector injector = Guice.createInjector();
@@ -75,7 +73,6 @@
 expected_3 = """
 
     @TestInstance(Lifecycle.PER_CLASS)
-    @ExtendWith(GuiceInjectionExtension.class)
     public class SomeTest {
 
       private final Injector injector = Guice.createInjector(new TestModuleA(), new Test.ModuleB());