diff --git a/setup.cfg b/setup.cfg
index 11b8123..35ff935 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -38,16 +38,16 @@ tornado =
 dev =
     asynctest==0.13.0
     coverage==5.5
-    flake8==3.8.4
+    flake8==3.9.2
     flake8-import-order==0.18.1
-    sphinx==3.5.2
-    sphinx-autodoc-typehints==1.11.1
+    sphinx==4.1.1
+    sphinx-autodoc-typehints==1.12.0
     sprockets.http==2.2.0
     tornado>=5
-    yapf==0.30.0
+    yapf==0.31.0
 readthedocs =
-    sphinx==3.5.2
-    sphinx-autodoc-typehints==1.11.1
+    sphinx==4.1.1
+    sphinx-autodoc-typehints==1.12.1
     tornado>=5
 
 [options.packages.find]