diff --git a/package-lock.json b/package-lock.json
index 71ae49d639..69c0e254b9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32083,7 +32083,7 @@
       }
     },
     "packages/ketcher-core": {
-      "version": "2.24.0-rc.1-unc29",
+      "version": "2.24.0-rc.1-unc30",
       "license": "Apache-2.0",
       "dependencies": {
         "@babel/runtime": "^7.17.9",
@@ -33676,7 +33676,7 @@
       }
     },
     "packages/ketcher-react": {
-      "version": "2.24.0-rc.1-unc29",
+      "version": "2.24.0-rc.1-unc30",
       "license": "Apache-2.0",
       "dependencies": {
         "@babel/runtime": "^7.17.9",
diff --git a/packages/ketcher-core/package.json b/packages/ketcher-core/package.json
index 1e791e92bb..76080f4df9 100644
--- a/packages/ketcher-core/package.json
+++ b/packages/ketcher-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ketcher-core",
-  "version": "2.24.0-rc.1-unc29",
+  "version": "2.24.0-rc.1-unc30",
   "description": "Web-based molecule sketcher",
   "license": "Apache-2.0",
   "homepage": "http://lifescience.opensource.epam.com/ketcher",
diff --git a/packages/ketcher-core/src/application/render/restruct/resgroup.ts b/packages/ketcher-core/src/application/render/restruct/resgroup.ts
index 97a660e8d1..b9ea10e761 100644
--- a/packages/ketcher-core/src/application/render/restruct/resgroup.ts
+++ b/packages/ketcher-core/src/application/render/restruct/resgroup.ts
@@ -95,11 +95,10 @@ class ReSGroup extends ReObject {
           break;
         }
         case 'SRU': {
-          let connectivity: string = sgroup.data.connectivity || 'eu';
-          if (connectivity === 'ht') connectivity = '';
+          const connectivity: string = sgroup.data.connectivity || 'eu';
           const subscript = sgroup.data.subscript || 'n';
           SGroupdrawBracketsOptions.lowerIndexText = subscript;
-          SGroupdrawBracketsOptions.upperIndexText = connectivity;
+          SGroupdrawBracketsOptions.upperIndexText = connectivity.toUpperCase();
           break;
         }
         case 'SUP': {
diff --git a/packages/ketcher-react/package.json b/packages/ketcher-react/package.json
index e88d61808f..a4015c2f66 100644
--- a/packages/ketcher-react/package.json
+++ b/packages/ketcher-react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ketcher-react",
-  "version": "2.24.0-rc.1-unc29",
+  "version": "2.24.0-rc.1-unc30",
   "description": "Web-based molecule sketcher",
   "license": "Apache-2.0",
   "homepage": "http://lifescience.opensource.epam.com/ketcher",