diff --git a/requirements.txt b/requirements.txt
index fafc6a0..e9c2586 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
-Django==2.0.2
-Sphinx==1.6.3
+Django==2.0.11
+Sphinx==3.0.4
 model-mommy==1.5.1
-requests==2.18.4
+requests==2.20
 pyqt5==5.10.1
+urllib3>=1.25.9 # not directly required, pinned by Snyk to avoid a vulnerability