diff --git a/docs/requirements.txt b/docs/requirements.txt
index f7109addae764ec90751db4d82382be194c2e2ec..188c35d695d884f7d200cda937bbb3ab6ca23842 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -21,7 +21,7 @@ docutils==0.17.1
     #   sphinx-rtd-theme
 idna==3.3
     # via requests
-imagesize==1.2.0
+imagesize==1.3.0
     # via sphinx
 jinja2==3.0.2
     # via sphinx