diff --git a/requirements.txt b/requirements.txt
index 7b0ce48be4d..1bce0cf57c4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -75,4 +75,4 @@ jsonrpc-requests>=0.1
 python-forecastio>=1.3.3
 
 # Firmata Bindings (*.arduino)
-PyMata>=2.07a
+PyMata==2.07a