diff --git a/CHANGELOG.md b/CHANGELOG.md
index 72a819b..454493d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
   * mypy 0.982
   * types-markdown 3.4.2.1
   * pytest-cov 4.0.0
+  * sphinx 5.3.0
 
 ## [1.4.1] - 2022-09-29
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index c8a2aef..cb925c4 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-sphinx==5.2.1
+sphinx==5.3.0
 twine==4.0.1
 wheel==0.37.1
 pytest==7.1.3