diff --git a/HISTORY.rst b/HISTORY.rst
index 715235b2..dfae91a9 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -9,6 +9,7 @@ PlatformIO 4.0
 4.0.3 (2019-??-??)
 ~~~~~~~~~~~~~~~~~~
 
+* Update SCons tool to 3.1.1
 * Remove ProjectConfig cache when "platformio.ini" was modified outside
 
 4.0.2 (2019-08-23)
diff --git a/platformio/managers/core.py b/platformio/managers/core.py
index 6ab05b1e..a5513ab9 100644
--- a/platformio/managers/core.py
+++ b/platformio/managers/core.py
@@ -29,7 +29,7 @@ CORE_PACKAGES = {
     "~2.%d%d.190418" % (sys.version_info[0], sys.version_info[1]),
     "tool-pioplus": "^2.5.2",
     "tool-unity": "~1.20403.0",
-    "tool-scons": "~2.20501.7" if PY2 else "~3.30005.0"
+    "tool-scons": "~2.20501.7" if PY2 else "~3.30101.0"
 }
 
 PIOPLUS_AUTO_UPDATES_MAX = 100