diff --git a/Dockerfile b/Dockerfile
index a7eb16ca8a..dfb48d277f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,4 +8,4 @@ RUN apt-get update
 
 # install build tools and dependencies
 
-RUN apt-get install -y build-essential git python gcc-arm-none-eabi
+RUN apt-get install -y build-essential git python python-ecdsa gcc-arm-none-eabi