diff --git a/assets/js/hooks/cell_editor/live_editor.js b/assets/js/hooks/cell_editor/live_editor.js
index 8b767723d..00f4b7826 100644
--- a/assets/js/hooks/cell_editor/live_editor.js
+++ b/assets/js/hooks/cell_editor/live_editor.js
@@ -45,7 +45,7 @@ import { settingsStore } from "../../lib/settings";
 import Delta from "../../lib/delta";
 import Markdown from "../../lib/markdown";
 import { readOnlyHint } from "./live_editor/codemirror/read_only_hint";
-import { isMacOS, wait } from "../../lib/utils";
+import { isMacOS, wait, isSafari } from "../../lib/utils";
 import Emitter from "../../lib/emitter";
 import CollabClient from "./live_editor/collab_client";
 import { languages } from "./live_editor/codemirror/languages";
@@ -397,6 +397,33 @@ export default class LiveEditor {
         selectionChangeListener,
       ],
     });
+
+    // In Safari, when a contenteditable element (here the editor) is
+    // blurred in favour of non-input element, typing something still
+    // targets the contenteditable element. This is a known bug [1],
+    // with a corresponding CodeMirror thread [2]. A workaround is to
+    // create and focus a temporary input, to properly remove focus
+    // from the contenteditable element.
+    //
+    // This is particularly annoying in our case, because the user may
+    // blur the editor and then use a letter shortcut, such as "n" for
+    // a new cell, which ends up typing in the editor.
+    //
+    // [1]: https://bugs.webkit.org/show_bug.cgi?id=112854
+    // [2]: https://discuss.codemirror.net/t/how-to-force-unfocus-of-the-codemirror-element-in-safari/8095
+    if (isSafari()) {
+      this.view.contentDOM.addEventListener("blur", (event) => {
+        const input = document.createElement("input");
+        input.style.cssText =
+          "width: 1px; height: 1px; border: none; margin: 0; padding: 0;";
+        input.tabIndex = -1;
+        this.view.contentDOM.appendChild(input);
+        input.focus();
+        input.setSelectionRange(0, 0);
+        input.blur();
+        input.remove();
+      });
+    }
   }
 
   /** @private */
diff --git a/assets/package-lock.json b/assets/package-lock.json
index 70b43abcf..8e38ec786 100644
--- a/assets/package-lock.json
+++ b/assets/package-lock.json
@@ -70,35 +70,55 @@
       }
     },
     "../deps/phoenix": {
-      "version": "1.7.20",
-      "license": "MIT"
+      "version": "1.8.0",
+      "license": "MIT",
+      "devDependencies": {
+        "@babel/cli": "7.28.0",
+        "@babel/core": "7.28.0",
+        "@babel/preset-env": "7.28.0",
+        "@eslint/js": "^9.28.0",
+        "@stylistic/eslint-plugin": "^5.0.0",
+        "documentation": "^14.0.3",
+        "eslint": "9.32.0",
+        "eslint-plugin-jest": "29.0.1",
+        "jest": "^30.0.0",
+        "jest-environment-jsdom": "^30.0.0",
+        "jsdom": "^26.1.0",
+        "mock-socket": "^9.3.1"
+      }
     },
     "../deps/phoenix_html": {
       "version": "4.2.1"
     },
     "../deps/phoenix_live_view": {
-      "version": "1.0.5",
+      "version": "1.1.11",
       "license": "MIT",
       "dependencies": {
-        "morphdom": "2.7.4"
+        "morphdom": "2.7.7"
       },
       "devDependencies": {
-        "@babel/cli": "7.26.4",
-        "@babel/core": "7.26.0",
-        "@babel/preset-env": "7.26.0",
-        "@eslint/js": "^9.18.0",
-        "@playwright/test": "^1.49.1",
-        "@stylistic/eslint-plugin-js": "^2.12.1",
+        "@babel/cli": "7.27.2",
+        "@babel/core": "7.27.4",
+        "@babel/preset-env": "7.27.2",
+        "@babel/preset-typescript": "^7.27.1",
+        "@eslint/js": "^9.29.0",
+        "@playwright/test": "^1.53.0",
+        "@types/jest": "^30.0.0",
+        "@types/phoenix": "^1.6.6",
         "css.escape": "^1.5.1",
-        "eslint": "9.18.0",
-        "eslint-plugin-jest": "28.10.0",
-        "eslint-plugin-playwright": "^2.1.0",
-        "globals": "^15.14.0",
-        "jest": "^29.7.0",
-        "jest-environment-jsdom": "^29.7.0",
+        "eslint": "9.29.0",
+        "eslint-plugin-jest": "28.14.0",
+        "eslint-plugin-playwright": "^2.2.0",
+        "globals": "^16.2.0",
+        "jest": "^30.0.0",
+        "jest-environment-jsdom": "^30.0.0",
         "jest-monocart-coverage": "^1.1.1",
-        "monocart-reporter": "^2.9.13",
-        "phoenix": "1.7.18"
+        "monocart-reporter": "^2.9.21",
+        "phoenix": "1.7.21",
+        "prettier": "3.5.3",
+        "ts-jest": "^29.4.0",
+        "typescript": "^5.8.3",
+        "typescript-eslint": "^8.34.0"
       }
     },
     "node_modules/@alloc/quick-lru": {
@@ -4342,9 +4362,9 @@
       }
     },
     "node_modules/caniuse-lite": {
-      "version": "1.0.30001703",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001703.tgz",
-      "integrity": "sha512-kRlAGTRWgPsOj7oARC9m1okJEXdL/8fekFVcxA8Hl7GH4r/sN4OJn/i6Flde373T50KS7Y37oFbMwlE8+F42kQ==",
+      "version": "1.0.30001751",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001751.tgz",
+      "integrity": "sha512-A0QJhug0Ly64Ii3eIqHu5X51ebln3k4yTUkY1j8drqpWHVreg/VLijN48cZ1bYPiqOQuqpkIKnzr/Ul8V+p6Cw==",
       "funding": [
         {
           "type": "opencollective",