diff --git a/docs/changelog/7.x.x.txt b/docs/changelog/7.x.x.txt
index 3db35f665..f16f11064 100644
--- a/docs/changelog/7.x.x.txt
+++ b/docs/changelog/7.x.x.txt
@@ -4,6 +4,7 @@
  - fixed #11381: Captcha of DataForm cached
  - fixed #11392: account.message var sometimes returns invalid html
  - fixed #11395: i18n LDAP field name in user properties wrong
+ - fixed #11396: WebGUI Workflow Cache Error.
 
 7.8.11
  - fixed #11362: Unable to checkout with ITransact plugin
diff --git a/docs/upgrades/upgrade_7.8.11-7.8.12.pl b/docs/upgrades/upgrade_7.8.11-7.8.12.pl
index 5fc7d60a5..2127112fd 100644
--- a/docs/upgrades/upgrade_7.8.11-7.8.12.pl
+++ b/docs/upgrades/upgrade_7.8.11-7.8.12.pl
@@ -31,6 +31,7 @@ my $quiet; # this line required
 my $session = start(); # this line required
 
 # upgrade functions go here
+fixWorkflowSizeLimits($session);
 
 finish($session); # this line required
 
@@ -45,6 +46,20 @@ finish($session); # this line required
 #}
 
 
+#----------------------------------------------------------------------------
+# Describe what our function does
+sub fixWorkflowSizeLimits {
+    my $session = shift;
+    print "\tAdjust size limits on File and Database cache cleanups... " unless $quiet;
+    ACTIVITY: foreach my $workflowActivityId (qw{pbwfactivity0000000002 pbwfactivity0000000022}) {
+        my $activity = WebGUI::Workflow::Activity->new($session, $workflowActivityId);
+        next ACTIVITY unless $activity;
+        next ACTIVITY unless $activity->get('sizeLimit') == 1_000_000_000;
+        $activity->set('sizeLimit', 100_000_000);
+    }
+    print "DONE!\n" unless $quiet;
+}
+
 # -------------- DO NOT EDIT BELOW THIS LINE --------------------------------
 
 #----------------------------------------------------------------------------