diff --git a/packages/ui/src/ui/components/ACL/ManageAcl/ManageAcl.scss b/packages/ui/src/ui/components/ACL/ManageAcl/ManageAcl.scss
index 244b9b8a8..7d0fd7fd6 100644
--- a/packages/ui/src/ui/components/ACL/ManageAcl/ManageAcl.scss
+++ b/packages/ui/src/ui/components/ACL/ManageAcl/ManageAcl.scss
@@ -30,7 +30,7 @@
     }
 
     &__flag {
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         color: var(--secondary-text);
     }
 }
diff --git a/packages/ui/src/ui/components/EditTextWithPreview/TabbedContent.scss b/packages/ui/src/ui/components/EditTextWithPreview/TabbedContent.scss
index dbfcd35f3..f408aed39 100644
--- a/packages/ui/src/ui/components/EditTextWithPreview/TabbedContent.scss
+++ b/packages/ui/src/ui/components/EditTextWithPreview/TabbedContent.scss
@@ -30,7 +30,7 @@
     &__title {
         padding: 0 1ex;
         flex-shrink: 1;
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         color: var(--primary-text);
 
         @include ellipsis();
diff --git a/packages/ui/src/ui/components/ElementsTable/ElementsTable.scss b/packages/ui/src/ui/components/ElementsTable/ElementsTable.scss
index 08d91eaba..bad83e022 100644
--- a/packages/ui/src/ui/components/ElementsTable/ElementsTable.scss
+++ b/packages/ui/src/ui/components/ElementsTable/ElementsTable.scss
@@ -68,7 +68,7 @@ $thin-border: 1px solid var(--light-divider);
         padding-left: 10px;
         padding-top: 60px;
         font-size: 20px;
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         line-height: 24px;
     }
 
diff --git a/packages/ui/src/ui/components/Label/Label.scss b/packages/ui/src/ui/components/Label/Label.scss
index f9192b6fc..0bcbafe39 100644
--- a/packages/ui/src/ui/components/Label/Label.scss
+++ b/packages/ui/src/ui/components/Label/Label.scss
@@ -7,7 +7,7 @@
     $label: &;
 
     font-size: 1em;
-    font-weight: 500;
+    font-weight: var(--yt-font-weight-bold);
 
     display: inline-block;
 
diff --git a/packages/ui/src/ui/components/NoItemsMessage/NoItemsMessage.scss b/packages/ui/src/ui/components/NoItemsMessage/NoItemsMessage.scss
index 80d003558..8ff688e8e 100644
--- a/packages/ui/src/ui/components/NoItemsMessage/NoItemsMessage.scss
+++ b/packages/ui/src/ui/components/NoItemsMessage/NoItemsMessage.scss
@@ -3,7 +3,7 @@
 .no-items-message {
     @include heading-size('m');
     line-height: 5em;
-    font-weight: 500;
+    font-weight: var(--yt-font-weight-bold);
     padding: 0 1ex;
     white-space: nowrap;
 }
diff --git a/packages/ui/src/ui/components/QuotaEditor/QuotaEditorWithHide.scss b/packages/ui/src/ui/components/QuotaEditor/QuotaEditorWithHide.scss
index 5266115de..23b93602d 100644
--- a/packages/ui/src/ui/components/QuotaEditor/QuotaEditorWithHide.scss
+++ b/packages/ui/src/ui/components/QuotaEditor/QuotaEditorWithHide.scss
@@ -55,7 +55,7 @@
         padding: 16px 24px;
         &-notice {
             font-size: 16px;
-            font-weight: 500;
+            font-weight: var(--yt-font-weight-bold);
             line-height: var(--g-text-body-2-line-height);
         }
         &-details {
@@ -65,7 +65,7 @@
             padding-top: 12px;
         }
         &-limit {
-            font-weight: 500;
+            font-weight: var(--yt-font-weight-bold);
         }
 
         .yc-button {
diff --git a/packages/ui/src/ui/components/StatusBlock/StatusBlock.scss b/packages/ui/src/ui/components/StatusBlock/StatusBlock.scss
index f52086ec4..1b7503f9c 100644
--- a/packages/ui/src/ui/components/StatusBlock/StatusBlock.scss
+++ b/packages/ui/src/ui/components/StatusBlock/StatusBlock.scss
@@ -5,7 +5,7 @@
 
 .status-block {
     border-radius: 4px;
-    font-weight: 500;
+    font-weight: var(--yt-font-weight-bold);
     padding: 2px 1ex;
     margin: 1px;
     max-width: 100%;
diff --git a/packages/ui/src/ui/components/StatusLabel/StatusLabel.scss b/packages/ui/src/ui/components/StatusLabel/StatusLabel.scss
index 2b0c0c44a..10d65a863 100644
--- a/packages/ui/src/ui/components/StatusLabel/StatusLabel.scss
+++ b/packages/ui/src/ui/components/StatusLabel/StatusLabel.scss
@@ -2,7 +2,7 @@
     font-size: 13px;
     border-radius: 14px;
     padding: 5px 12px;
-    font-weight: 500;
+    font-weight: var(--yt-font-weight-bold);
     vertical-align: text-top;
     color: $color;
     background-color: $background-color;
diff --git a/packages/ui/src/ui/containers/ClusterPageHeader/ClustersPanel.scss b/packages/ui/src/ui/containers/ClusterPageHeader/ClustersPanel.scss
index 5ce8ea64a..628b69f8b 100644
--- a/packages/ui/src/ui/containers/ClusterPageHeader/ClustersPanel.scss
+++ b/packages/ui/src/ui/containers/ClusterPageHeader/ClustersPanel.scss
@@ -29,7 +29,7 @@
     &__group-name {
         display: flex;
         align-items: center;
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
     }
 
     &__no-items,
diff --git a/packages/ui/src/ui/containers/ClustersMenu/ClusterMenuHeader.scss b/packages/ui/src/ui/containers/ClustersMenu/ClusterMenuHeader.scss
index 808a1136f..07ae2f632 100644
--- a/packages/ui/src/ui/containers/ClustersMenu/ClusterMenuHeader.scss
+++ b/packages/ui/src/ui/containers/ClustersMenu/ClusterMenuHeader.scss
@@ -42,7 +42,7 @@
     &__page-name {
         padding-left: 16px;
         font-size: var(--g-text-body-3-font-size);
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         line-height: var(--g-text-body-3-line-height);
     }
 
diff --git a/packages/ui/src/ui/containers/MaintenancePage/MaintenancePage.scss b/packages/ui/src/ui/containers/MaintenancePage/MaintenancePage.scss
index 228f49d64..1cd925bd9 100644
--- a/packages/ui/src/ui/containers/MaintenancePage/MaintenancePage.scss
+++ b/packages/ui/src/ui/containers/MaintenancePage/MaintenancePage.scss
@@ -30,13 +30,13 @@
 
     &__title {
         @include heading-size(l);
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         max-width: 350px;
         margin-bottom: 8px;
     }
 
     &__severity {
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         margin: 0;
         margin-bottom: 28px;
 
@@ -55,7 +55,7 @@
 
     &__user-title {
         @include heading-size(s);
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         margin: 0;
         margin-bottom: 8px;
     }
@@ -67,7 +67,7 @@
     }
 
     &__time-line {
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         margin: 0;
         margin-bottom: 12px;
     }
diff --git a/packages/ui/src/ui/legacy-styles/elements/modals/modals.scss b/packages/ui/src/ui/legacy-styles/elements/modals/modals.scss
index 671a49472..e99d9681e 100644
--- a/packages/ui/src/ui/legacy-styles/elements/modals/modals.scss
+++ b/packages/ui/src/ui/legacy-styles/elements/modals/modals.scss
@@ -75,7 +75,7 @@ $animation-duration: 0.2s;
         @include ellipsis();
 
         font-size: 16px;
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         line-height: 18px;
 
         position: relative;
diff --git a/packages/ui/src/ui/legacy-styles/elements/preloader.scss b/packages/ui/src/ui/legacy-styles/elements/preloader.scss
index a28540307..91a15dcca 100644
--- a/packages/ui/src/ui/legacy-styles/elements/preloader.scss
+++ b/packages/ui/src/ui/legacy-styles/elements/preloader.scss
@@ -28,7 +28,7 @@ $content-offset: 60px;
     &__title {
         @include heading-size(l);
         margin-bottom: 28px;
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
     }
 
     &__text {
diff --git a/packages/ui/src/ui/pages/accounts/AccountQuota/AccountQuota.scss b/packages/ui/src/ui/pages/accounts/AccountQuota/AccountQuota.scss
index e2b931293..677cbd7dd 100644
--- a/packages/ui/src/ui/pages/accounts/AccountQuota/AccountQuota.scss
+++ b/packages/ui/src/ui/pages/accounts/AccountQuota/AccountQuota.scss
@@ -8,7 +8,7 @@
     }
 
     &__name {
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         flex: 0 0 150px;
 
         @include ellipsis();
diff --git a/packages/ui/src/ui/pages/components/tabs/node/NodeMemoryDetailsTable/NodeMemoryDetailsTable.scss b/packages/ui/src/ui/pages/components/tabs/node/NodeMemoryDetailsTable/NodeMemoryDetailsTable.scss
index 1f0d1e154..26e55ded0 100644
--- a/packages/ui/src/ui/pages/components/tabs/node/NodeMemoryDetailsTable/NodeMemoryDetailsTable.scss
+++ b/packages/ui/src/ui/pages/components/tabs/node/NodeMemoryDetailsTable/NodeMemoryDetailsTable.scss
@@ -13,7 +13,7 @@
         &_bundle {
             cursor: pointer;
             background-color: var(--light-background);
-            font-weight: 500;
+            font-weight: var(--yt-font-weight-bold);
         }
     }
 }
diff --git a/packages/ui/src/ui/pages/navigation/Navigation/NavigationPermissionsNotice.scss b/packages/ui/src/ui/pages/navigation/Navigation/NavigationPermissionsNotice.scss
index c4cdb4b6d..a0163f935 100644
--- a/packages/ui/src/ui/pages/navigation/Navigation/NavigationPermissionsNotice.scss
+++ b/packages/ui/src/ui/pages/navigation/Navigation/NavigationPermissionsNotice.scss
@@ -2,6 +2,6 @@
     &__path,
     &__use {
         color: var(--secondary-text);
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
     }
 }
diff --git a/packages/ui/src/ui/pages/navigation/content/MapNode/NodesTypes/NodesTypes.scss b/packages/ui/src/ui/pages/navigation/content/MapNode/NodesTypes/NodesTypes.scss
index 40c6c2a4b..c3d61816c 100644
--- a/packages/ui/src/ui/pages/navigation/content/MapNode/NodesTypes/NodesTypes.scss
+++ b/packages/ui/src/ui/pages/navigation/content/MapNode/NodesTypes/NodesTypes.scss
@@ -37,7 +37,7 @@ $item-margin: 30px;
     }
 
     &__count {
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
     }
 
     &__actions {
diff --git a/packages/ui/src/ui/pages/operations/OperationsList/OperationsListToolbar/OperationsListToolbar.scss b/packages/ui/src/ui/pages/operations/OperationsList/OperationsListToolbar/OperationsListToolbar.scss
index c357b2719..4dc9a59b0 100644
--- a/packages/ui/src/ui/pages/operations/OperationsList/OperationsListToolbar/OperationsListToolbar.scss
+++ b/packages/ui/src/ui/pages/operations/OperationsList/OperationsListToolbar/OperationsListToolbar.scss
@@ -37,6 +37,6 @@
     }
 
     &__only-jobs-with-failed-counter {
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
     }
 }
diff --git a/packages/ui/src/ui/pages/query-tracker/Plan/NodeStages.scss b/packages/ui/src/ui/pages/query-tracker/Plan/NodeStages.scss
index 0d1092f27..0d6fe4054 100644
--- a/packages/ui/src/ui/pages/query-tracker/Plan/NodeStages.scss
+++ b/packages/ui/src/ui/pages/query-tracker/Plan/NodeStages.scss
@@ -13,7 +13,7 @@
     }
 
     &__footer {
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
 
         td {
             position: sticky;
diff --git a/packages/ui/src/ui/pages/query-tracker/Plan/components/Table/Table.scss b/packages/ui/src/ui/pages/query-tracker/Plan/components/Table/Table.scss
index bb9c083eb..a9330efb8 100644
--- a/packages/ui/src/ui/pages/query-tracker/Plan/components/Table/Table.scss
+++ b/packages/ui/src/ui/pages/query-tracker/Plan/components/Table/Table.scss
@@ -25,7 +25,7 @@
 
         padding: var(--table-header-vertical-padding) var(--table-cell-horizontal-padding);
 
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         cursor: default;
         text-align: left;
 
diff --git a/packages/ui/src/ui/pages/scheduling/Scheduling/PoolEditorDialog/PoolEditorDialog.scss b/packages/ui/src/ui/pages/scheduling/Scheduling/PoolEditorDialog/PoolEditorDialog.scss
index 544dce391..3a980ef71 100644
--- a/packages/ui/src/ui/pages/scheduling/Scheduling/PoolEditorDialog/PoolEditorDialog.scss
+++ b/packages/ui/src/ui/pages/scheduling/Scheduling/PoolEditorDialog/PoolEditorDialog.scss
@@ -13,7 +13,7 @@
     }
 
     &__flag {
-        font-weight: 500;
+        font-weight: var(--yt-font-weight-bold);
         color: var(--secondary-text);
     }