Change python-future to 0.15.2 (again)

Merges https://github.com/espressif/esp-idf/pull/2492

diff --git a/requirements.txt b/requirements.txt
index be2fdd5af6d714ef6e6ae0869c3f31c425d8edbc..70511959753cddc335b73210f5cf062316bee338 100644 (file)
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,5 +6,5 @@ setuptools
 # Please keep it as the first item of this list.
 #
 pyserial>=3.0
-future>=0.16.0
+future>=0.15.2
 cryptography