diff --git a/requirements-dev.txt b/requirements-dev.txt
index 81c1ade..fead02c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 # Development dependencies for RAG Transformer
 
 # Testing
-pytest==8.4.2
+pytest==9.0.3
 pytest-cov==7.0.0
 
 # Linting and type checking
@@ -18,14 +18,14 @@ pre-commit==4.3.0
 pip-tools>=7.0.0
 
 # Core dependencies (excluding torch which is installed separately in CI)
-transformers==4.57.3
+transformers==5.3.0
 sentence-transformers==5.1.2
 faiss-cpu==1.13.0
 numpy>=1.26.0,<3.0.0
 pandas==2.3.3
 scikit-learn==1.6.1
 openai==2.14.0
-python-dotenv==1.2.1
+python-dotenv==1.2.2
 requests>=2.33.0; python_version >= '3.10'
 requests>=2.32.5; python_version < '3.10'
 beautifulsoup4==4.14.3
diff --git a/requirements.txt b/requirements.txt
index a93c9c1..4c7ef40 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 # Core ML and AI dependencies
 torch>=2.8.0  # Note: CI installs CPU version with specific index URL for performance
-transformers==4.57.3
+transformers==5.3.0
 sentence-transformers==5.1.2
 faiss-cpu==1.13.0
 
@@ -17,7 +17,7 @@ beautifulsoup4==4.14.3
 tmdbsimple==2.9.1
 
 # Utility and system dependencies
-python-dotenv==1.2.1
+python-dotenv==1.2.2
 psutil==7.1.3
 time-machine==2.19.0
 memory-profiler==0.61.0