diff --git a/platformio/__init__.py b/platformio/__init__.py
index b2e0a694..27cc87e1 100644
--- a/platformio/__init__.py
+++ b/platformio/__init__.py
@@ -14,7 +14,7 @@
 
 import sys
 
-VERSION = (5, 2, "3b1")
+VERSION = (5, 2, "3b2")
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"
diff --git a/tox.ini b/tox.ini
index 67323226..5d38aa33 100644
--- a/tox.ini
+++ b/tox.ini
@@ -40,7 +40,7 @@ commands =
 [testenv:testcore]
 commands =
     {envpython} --version
-    py.test -v --basetemp="{envtmpdir}" -k-skip_ci tests --ignore tests/test_examples.py
+    py.test -v --basetemp="{envtmpdir}" -k "not skip_ci" tests --ignore tests/test_examples.py
 
 [testenv:testexamples]
 commands =