diff --git a/docs/changelog/7.x.x.txt b/docs/changelog/7.x.x.txt
index c9b2cf808..0bdcce644 100644
--- a/docs/changelog/7.x.x.txt
+++ b/docs/changelog/7.x.x.txt
@@ -56,6 +56,7 @@
  - fixed #8956: Not checking for populated variable
  - fixed #9130: fixed: Rich editor creates root <p> tag even when set to use <br />
  - fixed: DataForm times out when exporting large data sets
+ - fixed: DataForm entry data field is too small
 
 7.6.3
  - improved performance of file uploads
diff --git a/docs/upgrades/upgrade_7.6.3-7.6.4.pl b/docs/upgrades/upgrade_7.6.3-7.6.4.pl
index 6ad6c6d57..5bdd6b965 100644
--- a/docs/upgrades/upgrade_7.6.3-7.6.4.pl
+++ b/docs/upgrades/upgrade_7.6.3-7.6.4.pl
@@ -42,9 +42,17 @@ addExtendedProfilePrivileges( $session );
 addStorageUrlMacro( $session );
 addRecurringSubscriptionSwitch( $session );
 upgradeMatrix( $session );
+increaseDataFormSizeLimits( $session );
 finish($session); # this line required
 
 #----------------------------------------------------------------------------
+sub increaseDataFormSizeLimits {
+    my $session = shift;
+    print "\ttIncreasing size of DataForm entry data field... " unless $quiet;
+    $session->db->write("ALTER TABLE DataForm_entry MODIFY COLUMN entryData mediumtext");
+    print "Done.\n" unless $quiet;
+}
+
 sub upgradeMatrix {
     my $session = shift;
     print "\tUpgrading matrix assets... \n" unless $quiet;