diff --git a/requirements.txt b/requirements.txt
index 9771324..7d83dd4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,15 +4,26 @@
 #
 #    pip-compile
 #
-click==7.0                # via mkdocs
-jinja2==2.10.1            # via mkdocs
-livereload==2.6.1         # via mkdocs
-markdown==3.1.1           # via mkdocs
-markupsafe==1.1.1         # via jinja2
+click==7.0
+    # via mkdocs
+jinja2==2.11.3
+    # via mkdocs
+livereload==2.6.1
+    # via mkdocs
+markdown==3.1.1
+    # via mkdocs
+markupsafe==1.1.1
+    # via jinja2
 mkdocs==1.0.4
-pyyaml==5.1.1             # via mkdocs
-six==1.12.0               # via livereload
-tornado==6.0.3            # via livereload, mkdocs
+    # via -r requirements.in
+pyyaml==5.1.1
+    # via mkdocs
+six==1.12.0
+    # via livereload
+tornado==6.0.3
+    # via
+    #   livereload
+    #   mkdocs
 
 # The following packages are considered to be unsafe in a requirements file:
-# setuptools==41.0.1        # via markdown
+# setuptools