diff --git a/pyproject.toml b/pyproject.toml
index 1dc5ff214..448d782b9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ test = [
 ]
 docs = [
     "sphinx >= 1.4",
-    "sphinx_rtd_theme==1.2.2",
+    "sphinx_rtd_theme==1.3.0",
 ]
 
 [tool.black]