diff --git a/gallery.install b/gallery.install
index 573fb79808149f325430718a82c8e55e57ff7892..74e60c68764acb4d55f115cadcdb7a67933491a1 100644
--- a/gallery.install
+++ b/gallery.install
@@ -53,6 +53,11 @@ function gallery_update_1() {
   // Update variables
   $ret = gallery_update_variables($migrate, $obsolete);
   
+  // Update the blocks
+  $ret[] = update_sql("UPDATE {blocks} SET delta = 'image-0' WHERE module = 'gallery' AND delta = 0");
+  $ret[] = update_sql("UPDATE {blocks} SET delta = 'navigation' WHERE module = 'gallery' AND delta = 1");
+  $ret[] = update_sql("UPDATE {blocks} SET delta = 'grid-0' WHERE module = 'gallery' AND delta = 2");
+  
   // Mark gallery configuration invalid. This does NOT reset the configuration, but
   // forces the user to run the install wizard to (re)set and verify critical settings.
   variable_set('gallery_valid', FALSE);