diff --git a/src/khoj/routers/indexer.py b/src/khoj/routers/indexer.py
index a7a1249d..4f9ddb30 100644
--- a/src/khoj/routers/indexer.py
+++ b/src/khoj/routers/indexer.py
@@ -63,7 +63,7 @@ async def update(
     request: Request,
     files: list[UploadFile],
     force: bool = False,
-    t: Optional[Union[state.SearchType, str]] = None,
+    t: Optional[Union[state.SearchType, str]] = state.SearchType.All,
     client: Optional[str] = None,
     user_agent: Optional[str] = Header(None),
     referer: Optional[str] = Header(None),
@@ -182,13 +182,16 @@ def configure_content(
     files: Optional[dict[str, dict[str, str]]],
     search_models: SearchModels,
     regenerate: bool = False,
-    t: Optional[state.SearchType] = None,
+    t: Optional[state.SearchType] = state.SearchType.All,
     full_corpus: bool = True,
     user: KhojUser = None,
 ) -> tuple[Optional[ContentIndex], bool]:
     content_index = ContentIndex()
 
     success = True
+    if t is not None and t in [type.value for type in state.SearchType]:
+        t = state.SearchType(t)
+
     if t is not None and not t.value in [type.value for type in state.SearchType]:
         logger.warning(f"🚨 Invalid search type: {t}")
         return None, False
diff --git a/src/khoj/search_type/image_search.py b/src/khoj/search_type/image_search.py
index 214118fc..8c0a3cdb 100644
--- a/src/khoj/search_type/image_search.py
+++ b/src/khoj/search_type/image_search.py
@@ -229,7 +229,7 @@ def collate_results(hits, image_names, output_directory, image_files_url, count=
 
         # Add the image metadata to the results
         results += [
-            SearchResponse.parse_obj(
+            SearchResponse.model_validate(
                 {
                     "entry": f"{image_files_url}/{target_image_name}",
                     "score": f"{hit['score']:.9f}",
@@ -237,7 +237,7 @@ def collate_results(hits, image_names, output_directory, image_files_url, count=
                         "image_score": f"{hit['image_score']:.9f}",
                         "metadata_score": f"{hit['metadata_score']:.9f}",
                     },
-                    "corpus_id": hit["corpus_id"],
+                    "corpus_id": str(hit["corpus_id"]),
                 }
             )
         ]
diff --git a/src/khoj/utils/rawconfig.py b/src/khoj/utils/rawconfig.py
index 67016bf7..4c97aedd 100644
--- a/src/khoj/utils/rawconfig.py
+++ b/src/khoj/utils/rawconfig.py
@@ -14,7 +14,7 @@ from khoj.utils.helpers import to_snake_case_from_dash
 class ConfigBase(BaseModel):
     class Config:
         alias_generator = to_snake_case_from_dash
-        allow_population_by_field_name = True
+        populate_by_name = True
 
     def __getitem__(self, item):
         return getattr(self, item)
@@ -29,8 +29,8 @@ class TextConfigBase(ConfigBase):
 
 
 class TextContentConfig(ConfigBase):
-    input_files: Optional[List[Path]]
-    input_filter: Optional[List[str]]
+    input_files: Optional[List[Path]] = None
+    input_filter: Optional[List[str]] = None
     index_heading_entries: Optional[bool] = False
 
 
@@ -50,31 +50,31 @@ class NotionContentConfig(ConfigBase):
 
 
 class ImageContentConfig(ConfigBase):
-    input_directories: Optional[List[Path]]
-    input_filter: Optional[List[str]]
+    input_directories: Optional[List[Path]] = None
+    input_filter: Optional[List[str]] = None
     embeddings_file: Path
     use_xmp_metadata: bool
     batch_size: int
 
 
 class ContentConfig(ConfigBase):
-    org: Optional[TextContentConfig]
-    image: Optional[ImageContentConfig]
-    markdown: Optional[TextContentConfig]
-    pdf: Optional[TextContentConfig]
-    plaintext: Optional[TextContentConfig]
-    github: Optional[GithubContentConfig]
-    notion: Optional[NotionContentConfig]
+    org: Optional[TextContentConfig] = None
+    image: Optional[ImageContentConfig] = None
+    markdown: Optional[TextContentConfig] = None
+    pdf: Optional[TextContentConfig] = None
+    plaintext: Optional[TextContentConfig] = None
+    github: Optional[GithubContentConfig] = None
+    notion: Optional[NotionContentConfig] = None
 
 
 class ImageSearchConfig(ConfigBase):
     encoder: str
-    encoder_type: Optional[str]
-    model_directory: Optional[Path]
+    encoder_type: Optional[str] = None
+    model_directory: Optional[Path] = None
 
 
 class SearchConfig(ConfigBase):
-    image: Optional[ImageSearchConfig]
+    image: Optional[ImageSearchConfig] = None
 
 
 class OpenAIProcessorConfig(ConfigBase):
@@ -95,7 +95,7 @@ class ConversationProcessorConfig(ConfigBase):
 
 
 class ProcessorConfig(ConfigBase):
-    conversation: Optional[ConversationProcessorConfig]
+    conversation: Optional[ConversationProcessorConfig] = None
 
 
 class AppConfig(ConfigBase):
@@ -113,8 +113,8 @@ class FullConfig(ConfigBase):
 class SearchResponse(ConfigBase):
     entry: str
     score: float
-    cross_score: Optional[float]
-    additional: Optional[dict]
+    cross_score: Optional[float] = None
+    additional: Optional[dict] = None
     corpus_id: str