diff --git a/modules/jgit b/modules/jgit
index 85182df..21a4978 160000
--- a/modules/jgit
+++ b/modules/jgit
@@ -1 +1 @@
-Subproject commit 85182df26779dd6373d188b6adc936454b4c9189
+Subproject commit 21a497843cb804f5e714d8c93526422639efcc80
diff --git a/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager.ts b/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager.ts
index ac3e965..8d9f223 100644
--- a/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager.ts
+++ b/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager.ts
@@ -401,6 +401,7 @@
   // private but used in tests
   createToastAlert(showDismiss?: boolean) {
     const el = document.createElement('gr-alert');
+    el.owner = this;
     el.toast = true;
     el.showDismiss = !!showDismiss;
     return el;
diff --git a/polygerrit-ui/app/elements/shared/gr-alert/gr-alert.ts b/polygerrit-ui/app/elements/shared/gr-alert/gr-alert.ts
index d27e19d..9b80282 100644
--- a/polygerrit-ui/app/elements/shared/gr-alert/gr-alert.ts
+++ b/polygerrit-ui/app/elements/shared/gr-alert/gr-alert.ts
@@ -10,6 +10,7 @@
 import {LitElement, css, html} from 'lit';
 import {customElement, property} from 'lit/decorators.js';
 import {sharedStyles} from '../../../styles/shared-styles';
+import {DependencyRequestEvent} from '../../../models/dependency';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -124,6 +125,9 @@
   @property({type: Boolean})
   showDismiss = false;
 
+  @property({type: Object})
+  owner: HTMLElement | null = null;
+
   @property()
   _boundTransitionEndHandler?: (
     this: HTMLElement,
@@ -137,9 +141,11 @@
     super.connectedCallback();
     this._boundTransitionEndHandler = () => this._handleTransitionEnd();
     this.addEventListener('transitionend', this._boundTransitionEndHandler);
+    this.addEventListener('request-dependency', this.resolveDep);
   }
 
   override disconnectedCallback() {
+    this.removeEventListener('request-dependency', this.resolveDep);
     if (this._boundTransitionEndHandler) {
       this.removeEventListener(
         'transitionend',
@@ -149,6 +155,16 @@
     super.disconnectedCallback();
   }
 
+  /**
+   * Hovercards aren't children of <gr-app>. Dependencies must be resolved via
+   * their targets, so re-route 'request-dependency' events.
+   */
+  readonly resolveDep = (e: DependencyRequestEvent<unknown>) => {
+    this.owner?.dispatchEvent(
+      new DependencyRequestEvent<unknown>(e.dependency, e.callback)
+    );
+  };
+
   show(text: string, actionText?: string, actionCallback?: () => void) {
     this.text = text;
     this.actionText = actionText;