diff --git a/packages/zotero-mcp/package.nix b/packages/zotero-mcp/package.nix
index bf3f3d9..08d1d72 100644
--- a/packages/zotero-mcp/package.nix
+++ b/packages/zotero-mcp/package.nix
@@ -67,6 +67,12 @@ python3Packages.buildPythonApplication rec {
     pymupdf
     ebooklib
     pdfplumber
+    # Semantic search
+    chromadb
+    sentence-transformers
+    openai
+    google-genai
+    tiktoken
   ];
 
   # Optional: semantic search dependencies