diff --git a/esd/tests/spack_from_scratch_test.py b/esd/tests/spack_from_scratch_test.py
index c059ab4564e66f8ec1877dc0b3279979e5bd0e21..d1aca83cc8f83f4cc7e2a32725b87ee9d8fb1e53 100644
--- a/esd/tests/spack_from_scratch_test.py
+++ b/esd/tests/spack_from_scratch_test.py
@@ -11,14 +11,14 @@ from esd.utils.utils import file_exists_and_not_empty
 
 
 def test_spack_repo_exists_1():
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH)
+    spack_manager = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH)
     assert spack_manager.spack_repo_exists('ebrains-spack-builds') == False
 
 
 def test_spack_repo_exists_2(tmp_path):
     install_dir = tmp_path
     env = SpackModel('ebrains-spack-builds', install_dir)
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env)
+    spack_manager = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env)
     with pytest.raises(NoSpackEnvironmentException):
         spack_manager.spack_repo_exists(env.env_name)
 
@@ -26,7 +26,7 @@ def test_spack_repo_exists_2(tmp_path):
 def test_spack_repo_exists_3(tmp_path):
     install_dir = tmp_path
     env = SpackModel('ebrains-spack-builds', install_dir)
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env)
+    spack_manager = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env)
     spack_manager.setup_spack_env()
     assert spack_manager.spack_repo_exists(env.env_name) == False
 
@@ -35,7 +35,7 @@ def test_spack_from_scratch_setup_1(tmp_path):
     install_dir = tmp_path
     env = SpackModel('ebrains-spack-builds', install_dir,
                      'https://gitlab.ebrains.eu/ri/tech-hub/platform/esd/ebrains-spack-builds.git', )
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env,
+    spack_manager = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env,
                                                                               system_name='ebrainslab')
     spack_manager.setup_spack_env()
     assert spack_manager.spack_repo_exists(env.env_name) == False
@@ -46,7 +46,7 @@ def test_spack_from_scratch_setup_2(tmp_path):
     env = SpackModel('ebrains-spack-builds', install_dir,
                      'https://gitlab.ebrains.eu/ri/tech-hub/platform/esd/ebrains-spack-builds.git', )
     repo = env
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env,
+    spack_manager = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env,
                                                                               repos=[repo, repo],
                                                                               system_name='ebrainslab')
     spack_manager.setup_spack_env()
@@ -57,7 +57,7 @@ def test_spack_from_scratch_setup_3(tmp_path):
     install_dir = tmp_path
     env = SpackModel('new_env1', install_dir)
     repo = env
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env,
+    spack_manager = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env,
                                                                               repos=[repo, repo],
                                                                               system_name='ebrainslab')
     with pytest.raises(BashCommandException):
@@ -67,7 +67,7 @@ def test_spack_from_scratch_setup_3(tmp_path):
 def test_spack_from_scratch_setup_4(tmp_path):
     install_dir = tmp_path
     env = SpackModel('new_env2', install_dir)
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env)
+    spack_manager = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env)
     spack_manager.setup_spack_env()
     assert spack_manager.spack_env_exists() == True
 
@@ -75,7 +75,7 @@ def test_spack_from_scratch_setup_4(tmp_path):
 def test_spack_not_a_valid_repo():
     env = SpackModel('ebrains-spack-builds', Path(), None)
     repo = env
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env,
+    spack_manager = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env,
                                                                               repos=[repo],
                                                                               system_name='ebrainslab')
     with pytest.raises(NoSpackEnvironmentException):
@@ -87,7 +87,7 @@ def test_spack_from_scratch_concretize_1(tmp_path):
     env = SpackModel('ebrains-spack-builds', install_dir,
                      'https://gitlab.ebrains.eu/ri/tech-hub/platform/esd/ebrains-spack-builds.git', )
     repo = env
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env, repos=[repo, repo],
+    spack_manager = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env, repos=[repo, repo],
                                                          system_name='ebrainslab')
     spack_manager.setup_spack_env()
     spack_manager.concretize_spack_env(force=True)
@@ -100,7 +100,7 @@ def test_spack_from_scratch_concretize_2(tmp_path):
     env = SpackModel('ebrains-spack-builds', install_dir,
                      'https://gitlab.ebrains.eu/ri/tech-hub/platform/esd/ebrains-spack-builds.git', )
     repo = env
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env, repos=[repo, repo],
+    spack_manager = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env, repos=[repo, repo],
                                                          system_name='ebrainslab')
     spack_manager.setup_spack_env()
     spack_manager.concretize_spack_env(force=False)
@@ -113,7 +113,7 @@ def test_spack_from_scratch_concretize_3(tmp_path):
     env = SpackModel('ebrains-spack-builds', install_dir,
                      'https://gitlab.ebrains.eu/ri/tech-hub/platform/esd/ebrains-spack-builds.git', )
     repo = env
-    spack_manager: SpackManagerScratch = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env,
+    spack_manager  = SpackManagerCreator.get_spack_manger(SpackManagerEnum.FROM_SCRATCH, env=env,
                                                                               repos=[repo, repo],
                                                                               system_name='ebrainslab')
     spack_manager.setup_spack_env()