diff --git a/docs/requirements.txt b/docs/requirements.txt
index a392189..45e18fe 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -29,7 +29,7 @@ sphinxcontrib-htmlhelp==1.0.2  # via sphinx
 sphinxcontrib-jsmath==1.0.1  # via sphinx
 sphinxcontrib-qthelp==1.0.2  # via sphinx
 sphinxcontrib-serializinghtml==1.1.3  # via sphinx
-urllib3==1.25.3           # via requests
+urllib3==1.26.19           # via requests
 
 # The following packages are considered to be unsafe in a requirements file:
 # setuptools