diff --git a/app/requirements-prod.txt b/app/requirements-prod.txt
index f15d254..b97d828 100644
--- a/app/requirements-prod.txt
+++ b/app/requirements-prod.txt
@@ -29,7 +29,7 @@ psycopg2-binary  # For SQLAlchemy (user storage)
 # Note: torch==2.10.0+cpu is installed separately in Dockerfile to use CPU-only version
 # This saves ~3GB by excluding CUDA libraries (not needed on Railway CPU instances)
 sentence-transformers
-tokenizers==0.20.3
+tokenizers==0.23.1
 
 # --- Data Ingestion & Parsing ---
 chardet  # encoding detection for TextLoader autodetect_encoding
diff --git a/app/requirements.txt b/app/requirements.txt
index 7b11105..639e12f 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -29,7 +29,7 @@ psycopg2-binary  # For SQLAlchemy (user storage)
 --extra-index-url https://download.pytorch.org/whl/cpu
 torch==2.10.0+cpu
 sentence-transformers
-tokenizers==0.20.3
+tokenizers==0.23.1
 
 # --- Data Ingestion & Parsing ---
 gitpython