diff --git a/requirements-base.txt b/requirements-base.txt
index 3172c81..8cee4bb 100644
--- a/requirements-base.txt
+++ b/requirements-base.txt
@@ -27,7 +27,7 @@ hiredis>=2.3.0
 
 # Monitoring & Logging
 prometheus-client==0.23.1
-structlog==24.1.0
+structlog==25.5.0
 
 # Security
 cryptography>=39.0.0
diff --git a/requirements.txt b/requirements.txt
index dfd0536..fd3bed4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ hiredis>=2.3.0  # C parser for better Redis performance
 
 # Monitoring & Logging
 prometheus-client==0.23.1
-structlog==24.1.0
+structlog==25.5.0
 
 # Distributed Tracing (Issue #9: Monitoring & Observability)
 opentelemetry-api>=1.20.0