diff --git a/rdagent/utils/env.py b/rdagent/utils/env.py
index 347c3717..41de3ce8 100644
--- a/rdagent/utils/env.py
+++ b/rdagent/utils/env.py
@@ -41,7 +41,7 @@ from rdagent.oai.llm_utils import md5_hash
 from rdagent.utils.workflow import wait_retry
 
 
-class EnvConf(BaseModel):
+class EnvConf(ExtendedBaseSettings):
     default_entry: str
     extra_volumes: dict = {}
     running_timeout_period: int = 600  # 10 minutes
@@ -365,7 +365,7 @@ class MLECondaConf(CondaConf):
 
 
 ## Docker Environment -----
-class DockerConf(EnvConf, ExtendedBaseSettings):
+class DockerConf(EnvConf):
     build_from_dockerfile: bool = False
     dockerfile_folder_path: Optional[Path] = (
         None  # the path to the dockerfile optional path provided when build_from_dockerfile is False
diff --git a/test/utils/test_conf.py b/test/utils/test_conf.py
index 029976d4..79b0e8ff 100644
--- a/test/utils/test_conf.py
+++ b/test/utils/test_conf.py
@@ -6,13 +6,23 @@ class ConfUtils(unittest.TestCase):
     def test_conf(self):
         import os
 
-        from rdagent.utils.env import QlibDockerConf
+        from rdagent.utils.env import EnvConf, QlibDockerConf
 
         os.environ["MEM_LIMIT"] = "200g"
         assert QlibDockerConf().mem_limit == "200g"  # base class will affect subclasses
         os.environ["QLIB_DOCKER_MEM_LIMIT"] = "300g"
         assert QlibDockerConf().mem_limit == "300g"  # more accurate subclass will override the base class
 
+        os.environ["default_entry"] = "which python"
+        os.environ["ENABLE_CACHE"] = "False"
+
+        assert EnvConf().enable_cache is False
+        assert QlibDockerConf().enable_cache is False
+
+        os.environ["ENABLE_CACHE"] = "True"
+        assert EnvConf().enable_cache is True
+        assert QlibDockerConf().enable_cache is True
+
 
 if __name__ == "__main__":
     unittest.main()