diff --git a/docs/changelog/7.x.x.txt b/docs/changelog/7.x.x.txt
index 6e8e99765..0346523a2 100644
--- a/docs/changelog/7.x.x.txt
+++ b/docs/changelog/7.x.x.txt
@@ -48,6 +48,7 @@
  - added: Commit Version Tag screen shows revisions in the tag
  - added: Ability to enable/disable Thread archiving on a per-Collaboration 
    basis
+ - fixed: Thingy Thing Checkbox/Checklist/Selectbox/Selectlist limitations
 
 
 7.5.10
diff --git a/docs/upgrades/upgrade_7.5.10-7.5.11.pl b/docs/upgrades/upgrade_7.5.10-7.5.11.pl
index f21bcdfc0..84971f4e8 100644
--- a/docs/upgrades/upgrade_7.5.10-7.5.11.pl
+++ b/docs/upgrades/upgrade_7.5.10-7.5.11.pl
@@ -46,6 +46,7 @@ mergeProductsWithCommerce($session);
 addCaptchaToDataForm( $session );
 addArchiveEnabledToCollaboration( $session );
 addShelf( $session );
+modifyThingyPossibleValues( $session );
 
 finish($session); # this line required
 
@@ -609,6 +610,13 @@ CREATE TABLE paymentGateway (
 EOSQL
 }
 
+#-------------------------------------------------
+sub modifyThingyPossibleValues {
+    my $session = shift;
+    print "\tModify data type of Thingy field's possible Values property.\n" unless ($quiet);
+    $session->db->write("alter table Thingy_fields modify possibleValues text");
+}
+
 # -------------- DO NOT EDIT BELOW THIS LINE --------------------------------
 
 #----------------------------------------------------------------------------