diff --git a/etc/bin/mako-render b/etc/bin/mako-render
index 69d6ceddbc..99a6eb342b 100644
--- a/etc/bin/mako-render
+++ b/etc/bin/mako-render
@@ -233,7 +233,7 @@ def load_data(datafiles):
             if not imported_yaml:
                 import yaml
                 imported_yaml = True
-            data = yaml.load_all(open(filename, 'r'))
+            data = yaml.load_all(open(filename, 'r'), Loader=yaml.loader.FullLoader)
             data = list(data)[0]
         else:
             raise ValueError("Invalid data-file '%s', must be .json, .yaml or .yml" % filename)
diff --git a/requirements.txt b/requirements.txt
index e1a033162b..446991c6bd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-mako==1.1.3
+mako==1.1.4
 pyyaml
-mkdocs==0.11
+mkdocs==1.1.2
 pytest
 pytest-cov
 importlib_resources