diff --git a/requirements.txt b/requirements.txt
index 4ec1b127..43a698ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ bleach==1.4.3
 celery[redis]==4.0.2
 CommonMark==0.7.2
 Eve==0.7.3
-Flask==0.12.2
+Flask==0.12
 Flask-Babel==0.11.2
 Flask-Cache==0.13.1
 Flask-Script==2.0.6
@@ -18,7 +18,7 @@ Flask-WTF==0.12
 gcloud==0.12.0
 google-apitools==0.4.11
 httplib2==0.9.2
-MarkupSafe==1.0
+MarkupSafe==0.23
 ndg-httpsclient==0.4.0
 Pillow==4.1.1
 python-dateutil==2.5.3