diff --git a/stack/erp5/buildout.cfg b/stack/erp5/buildout.cfg
index 91eef3e8056cf032d46b5f52f08927847adf7cc0..b5e9419a14f47404ba8237e51df91cc0c5ac2fca 100644
--- a/stack/erp5/buildout.cfg
+++ b/stack/erp5/buildout.cfg
@@ -585,9 +585,6 @@ rdiff-backup = 1.0.5
 # use newest version of slapos.cookbook
 slapos.cookbook =
 
-# we need to define an explicit version of slapos.core that is propagated to instances
-slapos.core = 1.1.3
-
 # modified version that works fine for buildout installation
 SOAPpy = 0.12.0nxd001
 
diff --git a/stack/slapos.cfg b/stack/slapos.cfg
index 0725ff4224698478175cca41712d812cb30362c9..c15c9075b09f3cf3ce5e1de50aac949f5044b958 100644
--- a/stack/slapos.cfg
+++ b/stack/slapos.cfg
@@ -96,6 +96,8 @@ hexagonit.recipe.download = 1.7nxd002
 setuptools = 5.5.1
 # Official egg of prettytable has permission problems in EGG-INFO.
 prettytable = 0.7.3-nxd001
+# we need to define an explicit version of slapos.core that is propagated to instances
+slapos.core = 1.2.1
 
 Jinja2 = 2.7.3
 MarkupSafe = 0.23
@@ -118,7 +120,6 @@ pytz = 2014.4
 requests = 2.3.0
 six = 1.7.3
 slapos.cookbook = 0.87
-slapos.core = 1.2.1
 slapos.libnetworkcache = 0.14.1
 slapos.recipe.cmmi = 0.2
 stevedore = 0.15