diff --git a/requirements.txt b/requirements.txt
index 372c85f..aceb9da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-icalendar==4.0.2
-Markdown==2.6.11
-pelican==3.7.1
-beautifulsoup4==4.6.3
+icalendar==4.0.4
+Markdown==3.2.1
+pelican==4.2.0
+beautifulsoup4==4.8.2
 html5lib==1.0.1
-Pillow==6.1.0
+Pillow==7.0.0