diff --git a/requirements.txt b/requirements.txt
index 497de2e..ac3de75 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ cryptography==1.7.1
 drumhat==0.1.0
 envirophat==1.0.0
 ExplorerHAT==0.4.2
-Flask==0.12.1
+Flask==1.0
 fourletterphat==0.1.0
 gpiozero==1.5.0
 idna==2.2