diff --git a/modules/burgs-generator.js b/modules/burgs-generator.js
index 3769972b..b881d2e1 100644
--- a/modules/burgs-generator.js
+++ b/modules/burgs-generator.js
@@ -313,7 +313,7 @@ window.Burgs = (() => {
   ];
 
   function defineGroup(burg, populations) {
-    if (burg.lock) {
+    if (burg.lock && burg.group) {
       // locked burgs: don't change group if it still exists
       const group = options.burgs.groups.find(g => g.name === burg.group);
       if (group) return;
diff --git a/modules/dynamic/auto-update.js b/modules/dynamic/auto-update.js
index 00940db0..94e14c27 100644
--- a/modules/dynamic/auto-update.js
+++ b/modules/dynamic/auto-update.js
@@ -974,13 +974,32 @@ export function resolveVersionConflicts(mapVersion) {
   }
 
   if (isOlderThan("1.109.0")) {
-    // v1.107.0 changeв burg groups and added customizable icons
-    icons.selectAll("circle, use").remove();
+    // v1.109.0 added customizable burg groups and icons
+    burgIcons.selectAll("circle, use").each(function () {
+      const group = this.parentNode.id;
+      const id = this.id.replace(/^burg/, "");
+      const burg = pack.burgs[id];
+      if (burg) burg.group = group;
+    });
 
-    const groups = Array.from(document.querySelectorAll("#burgIcons > g")).map(g => g.id);
-    options.burgs = {
-      groups: groups.map(name => ({name, active: true, preview: null}))
-    };
+    options.burgs = {groups: []};
+
+    burgIcons.selectAll("g").each(function () {
+      const name = this.id;
+      options.burgs.groups.push({name, active: true, preview: "watabou-city"});
+
+      const size = Number(this.getAttribute("size") || 2) * 2;
+      this.removeAttribute("size");
+      this.setAttribute("font-size", size);
+
+      this.setAttribute("stroke-width", 10);
+    });
+
+    anchors.selectAll("g").each(function () {
+      const size = Number(this.getAttribute("size") || 1);
+      this.removeAttribute("size");
+      this.setAttribute("font-size", size);
+    });
 
     pack.burgs.forEach(burg => {
       if (!burg.i || burg.removed) return;
@@ -991,6 +1010,8 @@ export function resolveVersionConflicts(mapVersion) {
       }
     });
 
+    layerIsOn("toggleBurgIcons") && drawBurgIcons();
+
     delete options.showBurgPreview;
     delete options.showMFCGMap;
     delete options.villageMaxPopulation;