diff --git a/stack/erp5/buildout.cfg b/stack/erp5/buildout.cfg
index 6400efbd2295d89a4eabaf5538e51fd66b7e4f58..95019417971f283d612bf1ec1f36df81fe988324 100644
--- a/stack/erp5/buildout.cfg
+++ b/stack/erp5/buildout.cfg
@@ -270,7 +270,6 @@ context =
     key root_common root-common:target
     key site_zcml site-zcml:target
     key sixtunnel_location 6tunnel:location
-    key slapos_core_version versions:slapos.core
     key stunnel_location stunnel:location
     key template_apache_conf template-apache-backend-conf:target
     key template_balancer template-balancer:target
diff --git a/stack/erp5/buildout.hash.cfg b/stack/erp5/buildout.hash.cfg
index 433b8c5fdb7ed764392e8cea4516eba51d0f3af7..9d5e92acdcb95c9ba636e59cb620c22b6a4d282f 100644
--- a/stack/erp5/buildout.hash.cfg
+++ b/stack/erp5/buildout.hash.cfg
@@ -71,7 +71,7 @@ md5sum = 0969fbb25b05c02ef3c2d437b2f4e1a0
 
 [template]
 filename = instance.cfg.in
-md5sum = 8f22973e627a28cd700c485dafd7bffe
+md5sum = 8ab417cf1ca98d2840c80a266f0e2be7
 
 [monitor-template-dummy]
 filename = dummy.cfg
@@ -87,7 +87,7 @@ md5sum = 7610bafda245c008ccf0b6ea58ce21c2
 
 [template-zope]
 filename = instance-zope.cfg.in
-md5sum = 5e7145e8fa17046581b66e9690bf5186
+md5sum = cb8adc3f3c7bf83dbb3285cfc720eaf3
 
 [template-balancer]
 filename = instance-balancer.cfg.in
diff --git a/stack/erp5/instance-zope.cfg.in b/stack/erp5/instance-zope.cfg.in
index 503611c7107ed59351b865ed2d615f355e309823..fd950d63d8c31f1e2cf7e41db1b4f85364cb419a 100644
--- a/stack/erp5/instance-zope.cfg.in
+++ b/stack/erp5/instance-zope.cfg.in
@@ -400,7 +400,3 @@ parts +=
   erp5-promise
   {{ part_list | join('\n  ') }}
   publish
-versions = versions
-
-[versions]
-slapos.core = {{ slapos_core_version }}
diff --git a/stack/erp5/instance.cfg.in b/stack/erp5/instance.cfg.in
index fc2dec4b4a65d0677cb3c43a650569ab7f418ffe..49781f1d40248fe512f7b37a4036650dc70f676a 100644
--- a/stack/erp5/instance.cfg.in
+++ b/stack/erp5/instance.cfg.in
@@ -2,8 +2,6 @@
 extends = {{ instance_common_cfg }}
 
 [jinja2-template-base]
-context +=
-    raw slapos_core_version {{ slapos_core_version }}
 mode = 644
 
 [dynamic-template-cloudooo-parameters]