diff --git a/requirements-core.txt b/requirements-core.txt
index c571613..65e747c 100644
--- a/requirements-core.txt
+++ b/requirements-core.txt
@@ -13,7 +13,7 @@ statsmodels==0.14.4    # Statistical modeling
 requests==2.32.4       # HTTP library with security patches - FIXED CVE
 cryptography==44.0.1   # Cryptographic functions - FIXED CVE  
 certifi==2024.12.14    # Certificate validation
-urllib3==2.5.0         # HTTP client with security patches - FIXED CVE
+urllib3==2.6.3         # HTTP client with security patches - FIXED CVE
 
 # Utilities
 joblib==1.4.2          # Parallel processing
diff --git a/requirements.txt b/requirements.txt
index 8290d23..e057e1d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ pyyaml==6.0.2          # YAML parser with security fixes
 # Security and Validation
 cryptography==44.0.0   # Cryptographic recipes and primitives
 certifi==2024.12.14    # Certificate validation
-urllib3==2.2.3         # HTTP client with security patches
+urllib3==2.6.3         # HTTP client with security patches
 
 # Development and Testing
 pytest==8.3.4          # Testing framework