diff --git a/requirements.txt b/requirements.txt
index 1a8b3e1..147ec6e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 biopython==1.74
-Django==2.2.6
+Django==2.2.28
 numpy==1.17.2
 python-codon-tables==0.1.8
 pytz==2019.3