diff --git a/requirements.txt b/requirements.txt
index 4d28e73..3fe1381 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,4 +11,4 @@ pylint==2.14.0
 black==22.3.0
 
 # Optional
-sphinx==4.5.0
+sphinx==8.1.3
diff --git a/src/requirements.txt b/src/requirements.txt
index 3e87914..0972fdb 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -11,4 +11,4 @@ pylint==2.14.0
 black==24.3.0
 
 # Optional
-sphinx==4.5.0
+sphinx==8.1.3