diff --git a/indexer/requirements.txt b/indexer/requirements.txt
index 2d23893..0453f33 100644
--- a/indexer/requirements.txt
+++ b/indexer/requirements.txt
@@ -1,3 +1,3 @@
-flask
-sqlalchemy
-flask-sqlalchemy
+flask==0.12.2
+sqlalchemy==1.2.2
+flask-sqlalchemy==2.3.2