diff -u b/core/profiles/testing_inherited/testing_inherited.info.yml b/core/profiles/testing_inherited/testing_inherited.info.yml
--- b/core/profiles/testing_inherited/testing_inherited.info.yml
+++ b/core/profiles/testing_inherited/testing_inherited.info.yml
@@ -2,7 +2,6 @@
 type: profile
 description: 'Profile for testing base profile inheritance.'
 version: VERSION
-core: 8.x
 hidden: true
 
 base profile: testing
diff -u b/core/profiles/testing_inherited_standard/testing_inherited_standard.info.yml b/core/profiles/testing_inherited_standard/testing_inherited_standard.info.yml
--- b/core/profiles/testing_inherited_standard/testing_inherited_standard.info.yml
+++ b/core/profiles/testing_inherited_standard/testing_inherited_standard.info.yml
@@ -2,7 +2,6 @@
 type: profile
 description: 'Profile for testing base profile inheritance.'
 version: VERSION
-core: 8.x
 hidden: true
 
 base profile: standard
diff -u b/core/profiles/testing_subsubprofile/testing_subsubprofile.info.yml b/core/profiles/testing_subsubprofile/testing_subsubprofile.info.yml
--- b/core/profiles/testing_subsubprofile/testing_subsubprofile.info.yml
+++ b/core/profiles/testing_subsubprofile/testing_subsubprofile.info.yml
@@ -2,7 +2,6 @@
 type: profile
 description: 'Profile for testing deep profile inheritance.'
 version: VERSION
-core: 8.x
 hidden: true
 
 base profile: testing_inherited