diff --git a/backend/glowpath-backend.spec b/backend/glowpath-backend.spec
index 067432d..a38cd5e 100644
--- a/backend/glowpath-backend.spec
+++ b/backend/glowpath-backend.spec
@@ -32,6 +32,14 @@ additional_packages = [
     'websockets',
     'sse_starlette',
     'chromadb',
+    'sentence_transformers',
+    'transformers',
+    'torch',
+    'numpy',
+    'sklearn',
+    'scipy',
+    'tokenizers',
+    'huggingface_hub',
 ]
 
 for package in additional_packages:
@@ -66,6 +74,27 @@ hiddenimports += [
     'chromadb.db',
     'chromadb.db.impl',
     'onnxruntime',
+    # Sentence transformers specific imports
+    'sentence_transformers.models.Transformer',
+    'sentence_transformers.models.Pooling',
+    'sentence_transformers.models.Normalize',
+    'sentence_transformers.cross_encoder',
+    'sentence_transformers.util',
+    'sentence_transformers.evaluation',
+    'transformers.models.auto.modeling_auto',
+    'transformers.models.auto.tokenization_auto',
+    'transformers.models.auto.configuration_auto',
+    'transformers.models.bert',
+    'transformers.models.distilbert',
+    'transformers.models.roberta',
+    'transformers.models.mpnet',
+    'torch._C',
+    'torch.nn.functional',
+    'torch.utils.data',
+    'sklearn.metrics.pairwise',
+    'sklearn.feature_extraction.text',
+    'numpy.core._methods',
+    'numpy.lib.format',
 ]
 
 # Include SSL certificates
diff --git a/backend/hooks/hook-open_webui.py b/backend/hooks/hook-open_webui.py
index efa64ef..cd58f5d 100644
--- a/backend/hooks/hook-open_webui.py
+++ b/backend/hooks/hook-open_webui.py
@@ -30,4 +30,25 @@ hiddenimports += [
     "uvicorn.protocols.websockets.auto",
     "uvicorn.lifespan.on",
     "uvicorn.loops.auto",
+    # Sentence transformers and embedding related imports
+    "sentence_transformers",
+    "sentence_transformers.models",
+    "sentence_transformers.models.Transformer",
+    "sentence_transformers.models.Pooling",
+    "sentence_transformers.models.Normalize",
+    "sentence_transformers.util",
+    "sentence_transformers.cross_encoder",
+    "transformers",
+    "transformers.models",
+    "transformers.models.auto",
+    "transformers.models.bert",
+    "transformers.tokenization_utils",
+    "torch",
+    "torch.nn",
+    "torch.optim",
+    "tokenizers",
+    "tokenizers.implementations",
+    "huggingface_hub",
+    "huggingface_hub.file_download",
+    "sklearn.metrics.pairwise",
 ]