diff --git a/app/config/app.py b/app/config/app.py
index 82caa37..d961985 100644
--- a/app/config/app.py
+++ b/app/config/app.py
@@ -13,9 +13,9 @@ class GlobalConfig(BaseSettings):
     # This variable will be loaded from the .env file. However, if there is a
     # shell environment variable having the same name, that will take precedence.
 
-    ENV_STATE: Optional[str] = pydantic.Field(None, env="ENV_STATE")
-    HOST: Optional[str] = pydantic.Field(None, env="HOST")
-    PORT: Optional[str] = pydantic.Field(None, env="PORT")
+    ENV_STATE: Optional[str] = pydantic.Field(None, env="ENV_STATE")  # type: ignore
+    HOST: Optional[str] = pydantic.Field(None, env="HOST")  # type: ignore
+    PORT: Optional[str] = pydantic.Field(None, env="PORT")  # type: ignore
 
     model_config = SettingsConfigDict(
         env_file=".env",
@@ -29,37 +29,59 @@ class GlobalConfig(BaseSettings):
 class DevConfig(GlobalConfig):
     """Development configurations."""
 
-    ROOT_PATH: Optional[str] = pydantic.Field(None, env="DEV_ROOT_PATH")
+    ROOT_PATH: Optional[str] = pydantic.Field(None, env="DEV_ROOT_PATH")  # type: ignore
     AWS_LAMBDA_DEPLOY: Optional[bool] = pydantic.Field(
         None, env="DEV_AWS_LAMBDA_DEPLOY"
-    )
-    LOG_PATH: Optional[str] = pydantic.Field(None, env="DEV_LOG_PATH")
-    LOG_FILENAME: Optional[str] = pydantic.Field(None, env="DEV_LOG_FILENAME")
-    LOG_LEVEL: Optional[str] = pydantic.Field(None, env="DEV_LOG_LEVEL")
-    LOG_ENQUEUE: Optional[bool] = pydantic.Field(None, env="DEV_LOG_ENQUEUE")
-    LOG_ROTATION: Optional[str] = pydantic.Field(None, env="DEV_LOG_ROTATION")
-    LOG_RETENTION: Optional[str] = pydantic.Field(None, env="DEV_LOG_RETENTION")
-    LOG_FORMAT: Optional[str] = pydantic.Field(None, env="DEV_LOG_FORMAT")
-    OPA_ENABLED: Optional[bool] = pydantic.Field(None, env="DEV_OPA_ENABLED")
-    OPA_URL: Optional[str] = pydantic.Field(None, env="DEV_OPA_URL")
-    APP_URI: Optional[str] = pydantic.Field(None, env="DEV_APP_URI")
+    )  # type: ignore
+    LOG_PATH: Optional[str] = pydantic.Field(None, env="DEV_LOG_PATH")  # type: ignore
+    LOG_FILENAME: Optional[str] = pydantic.Field(
+        None, env="DEV_LOG_FILENAME"
+    )  # type: ignore
+    LOG_LEVEL: Optional[str] = pydantic.Field(None, env="DEV_LOG_LEVEL")  # type: ignore
+    LOG_ENQUEUE: Optional[bool] = pydantic.Field(
+        None, env="DEV_LOG_ENQUEUE"
+    )  # type: ignore
+    LOG_ROTATION: Optional[str] = pydantic.Field(
+        None, env="DEV_LOG_ROTATION"
+    )  # type: ignore
+    LOG_RETENTION: Optional[str] = pydantic.Field(
+        None, env="DEV_LOG_RETENTION"
+    )  # type: ignore
+    LOG_FORMAT: Optional[str] = pydantic.Field(
+        None, env="DEV_LOG_FORMAT"
+    )  # type: ignore
+    OPA_ENABLED: Optional[bool] = pydantic.Field(
+        None, env="DEV_OPA_ENABLED"
+    )  # type: ignore
+    OPA_URL: Optional[str] = pydantic.Field(None, env="DEV_OPA_URL")  # type: ignore
+    APP_URI: Optional[str] = pydantic.Field(None, env="DEV_APP_URI")  # type: ignore
     OIDC_WELL_KNOWN_ENDPOINT: Optional[str] = pydantic.Field(
         None, env="DEV_OIDC_WELL_KNOWN_ENDPOINT"
-    )
-    OIDC_CLIENT_ID: Optional[str] = pydantic.Field(None, env="DEV_OIDC_CLIENT_ID")
+    )  # type: ignore
+    OIDC_CLIENT_ID: Optional[str] = pydantic.Field(
+        None, env="DEV_OIDC_CLIENT_ID"
+    )  # type: ignore
     OIDC_CLIENT_SECRET: Optional[str] = pydantic.Field(
         None, env="DEV_OIDC_CLIENT_SECRET"
-    )
-    API_KEY_ENABLED: Optional[bool] = pydantic.Field(None, env="DEV_API_KEY_ENABLED")
+    )  # type: ignore
+    API_KEY_ENABLED: Optional[bool] = pydantic.Field(
+        None, env="DEV_API_KEY_ENABLED"
+    )  # type: ignore
     PYGEOAPI_KEY_GLOBAL: Optional[str] = pydantic.Field(
         None, env="DEV_PYGEOAPI_KEY_GLOBAL"
-    )
-    PYGEOAPI_BASEURL: Optional[str] = pydantic.Field(None, env="DEV_PYGEOAPI_BASEURL")
-    PYGEOAPI_CONFIG: Optional[str] = pydantic.Field(None, env="DEV_PYGEOAPI_CONFIG")
-    PYGEOAPI_OPENAPI: Optional[str] = pydantic.Field(None, env="DEV_PYGEOAPI_OPENAPI")
+    )  # type: ignore
+    PYGEOAPI_BASEURL: Optional[str] = pydantic.Field(
+        None, env="DEV_PYGEOAPI_BASEURL"
+    )  # type: ignore
+    PYGEOAPI_CONFIG: Optional[str] = pydantic.Field(
+        None, env="DEV_PYGEOAPI_CONFIG"
+    )  # type: ignore
+    PYGEOAPI_OPENAPI: Optional[str] = pydantic.Field(
+        None, env="DEV_PYGEOAPI_OPENAPI"
+    )  # type: ignore
     FASTGEOAPI_CONTEXT: Optional[str] = pydantic.Field(
         None, env="DEV_FASTGEOAPI_CONTEXT"
-    )
+    )  # type: ignore
 
     model_config = SettingsConfigDict(env_prefix="DEV_")
 
@@ -67,37 +89,37 @@ class DevConfig(GlobalConfig):
 class ProdConfig(GlobalConfig):
     """Production configurations."""
 
-    ROOT_PATH: Optional[str] = pydantic.Field(None, env="PROD_ROOT_PATH")
+    ROOT_PATH: Optional[str] = pydantic.Field(None, env="PROD_ROOT_PATH")  # type: ignore
     AWS_LAMBDA_DEPLOY: Optional[bool] = pydantic.Field(
         None, env="PROD_AWS_LAMBDA_DEPLOY"
-    )
-    LOG_PATH: Optional[str] = pydantic.Field(None, env="PROD_LOG_PATH")
-    LOG_FILENAME: Optional[str] = pydantic.Field(None, env="PROD_LOG_FILENAME")
-    LOG_LEVEL: Optional[str] = pydantic.Field(None, env="PROD_LOG_LEVEL")
-    LOG_ENQUEUE: Optional[bool] = pydantic.Field(None, env="PROD_LOG_ENQUEUE")
-    LOG_ROTATION: Optional[str] = pydantic.Field(None, env="PROD_LOG_ROTATION")
-    LOG_RETENTION: Optional[str] = pydantic.Field(None, env="PROD_LOG_RETENTION")
-    LOG_FORMAT: Optional[str] = pydantic.Field(None, env="PROD_LOG_FORMAT")
-    OPA_ENABLED: Optional[bool] = pydantic.Field(None, env="PROD_OPA_ENABLED")
-    OPA_URL: Optional[str] = pydantic.Field(None, env="PROD_OPA_URL")
-    APP_URI: Optional[str] = pydantic.Field(None, env="PROD_APP_URI")
+    )  # type: ignore
+    LOG_PATH: Optional[str] = pydantic.Field(None, env="PROD_LOG_PATH")  # type: ignore
+    LOG_FILENAME: Optional[str] = pydantic.Field(None, env="PROD_LOG_FILENAME")  # type: ignore
+    LOG_LEVEL: Optional[str] = pydantic.Field(None, env="PROD_LOG_LEVEL")  # type: ignore
+    LOG_ENQUEUE: Optional[bool] = pydantic.Field(None, env="PROD_LOG_ENQUEUE")  # type: ignore
+    LOG_ROTATION: Optional[str] = pydantic.Field(None, env="PROD_LOG_ROTATION")  # type: ignore
+    LOG_RETENTION: Optional[str] = pydantic.Field(None, env="PROD_LOG_RETENTION")  # type: ignore
+    LOG_FORMAT: Optional[str] = pydantic.Field(None, env="PROD_LOG_FORMAT")  # type: ignore
+    OPA_ENABLED: Optional[bool] = pydantic.Field(None, env="PROD_OPA_ENABLED")  # type: ignore
+    OPA_URL: Optional[str] = pydantic.Field(None, env="PROD_OPA_URL")  # type: ignore
+    APP_URI: Optional[str] = pydantic.Field(None, env="PROD_APP_URI")  # type: ignore
     OIDC_WELL_KNOWN_ENDPOINT: Optional[str] = pydantic.Field(
         None, env="PROD_OIDC_WELL_KNOWN_ENDPOINT"
-    )
-    OIDC_CLIENT_ID: Optional[str] = pydantic.Field(None, env="PROD_OIDC_CLIENT_ID")
+    )  # type: ignore
+    OIDC_CLIENT_ID: Optional[str] = pydantic.Field(None, env="PROD_OIDC_CLIENT_ID")  # type: ignore
     OIDC_CLIENT_SECRET: Optional[str] = pydantic.Field(
         None, env="PROD_OIDC_CLIENT_SECRET"
-    )
-    API_KEY_ENABLED: Optional[bool] = pydantic.Field(None, env="PROD_API_KEY_ENABLED")
+    )  # type: ignore
+    API_KEY_ENABLED: Optional[bool] = pydantic.Field(None, env="PROD_API_KEY_ENABLED")  # type: ignore
     PYGEOAPI_KEY_GLOBAL: Optional[str] = pydantic.Field(
         None, env="PROD_PYGEOAPI_KEY_GLOBAL"
-    )
-    PYGEOAPI_BASEURL: Optional[str] = pydantic.Field(None, env="PROD_PYGEOAPI_BASEURL")
-    PYGEOAPI_CONFIG: Optional[str] = pydantic.Field(None, env="PROD_PYGEOAPI_CONFIG")
-    PYGEOAPI_OPENAPI: Optional[str] = pydantic.Field(None, env="PROD_PYGEOAPI_OPENAPI")
+    )  # type: ignore
+    PYGEOAPI_BASEURL: Optional[str] = pydantic.Field(None, env="PROD_PYGEOAPI_BASEURL")  # type: ignore
+    PYGEOAPI_CONFIG: Optional[str] = pydantic.Field(None, env="PROD_PYGEOAPI_CONFIG")  # type: ignore
+    PYGEOAPI_OPENAPI: Optional[str] = pydantic.Field(None, env="PROD_PYGEOAPI_OPENAPI")  # type: ignore
     FASTGEOAPI_CONTEXT: Optional[str] = pydantic.Field(
         None, env="PROD_FASTGEOAPI_CONTEXT"
-    )
+    )  # type: ignore
 
     model_config = SettingsConfigDict(env_prefix="PROD_")
 
diff --git a/pyproject.toml b/pyproject.toml
index 87add7b..4e0dd40 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -87,6 +87,7 @@ show_missing = true
 fail_under = 100
 
 [tool.mypy]
+exclude = ".venv"
 strict = true
 warn_unreachable = true
 pretty = true