diff --git a/requirements-dev.txt b/requirements-dev.txt
index 00d32e70..fa910d09 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -33,7 +33,7 @@ twine>=4.0.0
 wheel>=0.40.0
 
 # Documentation
-sphinx>=6.0.0
+sphinx>=9.0.4
 sphinx-rtd-theme>=3.1.0
 
 # Security scanning
diff --git a/requirements-test.txt b/requirements-test.txt
index 6e29baf9..b78d8381 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -27,7 +27,7 @@ freezegun>=1.5.5
 factory-boy>=3.2.0
 
 # Documentation testing
-sphinx>=6.0.0
+sphinx>=9.0.4
 sphinx-rtd-theme>=3.1.0
 
 # Container testing