diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index fd873e8e..f3896cb5 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -299,42 +299,6 @@ jobs:
         run: npm clean-install
       - name: Run integration tests
         run: npm run coverage:integration
-  test-mutation-unit:
-    name: Mutation (Unit)
-    runs-on: ubuntu-24.04
-    needs:
-      - test-unit
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
-        with:
-          persist-credentials: false
-      - name: Verify action checksums
-        uses: ./.github/actions/ghasum
-      - name: Install Node.js
-        uses: actions/setup-node@v6.3.0
-        with:
-          cache: npm
-          node-version-file: .nvmrc
-      - name: Cache Stryker incremental report
-        uses: actions/cache@v5.0.3
-        with:
-          path: .cache/stryker-incremental-unit.json
-          key: mutation-unit-${{ github.run_number }}
-          restore-keys: |
-            mutation-unit-
-      - name: Install dependencies
-        run: npm clean-install
-      - name: Run mutation tests
-        run: npm run mutation:unit
-      - name: Upload mutation report
-        uses: actions/upload-artifact@v7.0.0
-        if: ${{ failure() || success() }}
-        with:
-          name: mutation-unit-report
-          path: |
-            _reports/mutation/unit.html
-            .cache/stryker-incremental-unit.json
   test-mutation-integration:
     name: Mutation (integration)
     runs-on: ubuntu-24.04
@@ -392,6 +356,15 @@ jobs:
           node-version-file: .nvmrc
       - name: Install dependencies
         run: npm clean-install
+      - name: Run unit tests
+        run: |
+          cd node_modules/shescape-previous
+          git init .
+          git add .
+          git config --global user.name "John Doe"
+          git config --global user.email johndoe@example.com
+          git commit -m 'n/a'
+          git apply ../../2410.patch
       - name: Run unit tests
         run: npm run coverage:unit
   transpile:
diff --git a/2410.patch b/2410.patch
new file mode 100644
index 00000000..8eb5dedf
--- /dev/null
+++ b/2410.patch
@@ -0,0 +1,26 @@
+diff --git a/src/internal/unix/bash.js b/src/internal/unix/bash.js
+index 19fba6d..c1c57ce 100644
+--- a/src/internal/unix/bash.js
++++ b/src/internal/unix/bash.js
+@@ -15,7 +15,7 @@ function escapeArg(arg) {
+     .replace(/\n/gu, " ")
+     .replace(/\\/gu, "\\\\")
+     .replace(/(?<=^|\s)([#~])/gu, "\\$1")
+-    .replace(/(["$&'()*;<>?`{|])/gu, "\\$1")
++    .replace(/(["$&'()*;<>?`{|[\]])/gu, "\\$1")
+     .replace(/(?<=[:=])(~)(?=[\s+\-/0:=]|$)/gu, "\\$1")
+     .replace(/([\t ])/gu, "\\$1");
+ }
+diff --git a/src/internal/unix/busybox.js b/src/internal/unix/busybox.js
+index e61262f..0c91dc4 100644
+--- a/src/internal/unix/busybox.js
++++ b/src/internal/unix/busybox.js
+@@ -15,7 +15,7 @@ function escapeArg(arg) {
+     .replace(/\n/gu, " ")
+     .replace(/\\/gu, "\\\\")
+     .replace(/(?<=^|\s)([#~])/gu, "\\$1")
+-    .replace(/(["$&'()*;<>?`|])/gu, "\\$1")
++    .replace(/(["$&'()*;<>?`|[\]])/gu, "\\$1")
+     .replace(/([\t ])/gu, "\\$1");
+ }
+ 
diff --git a/package-lock.json b/package-lock.json
index 23f3c349..50df7268 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -46,7 +46,7 @@
         "prettier": "3.7.3",
         "publint": "0.3.18",
         "rollup": "4.60.0",
-        "shescape-previous": "npm:shescape@2.1.10",
+        "shescape-previous": "npm:shescape@2.1.7",
         "sinon": "21.0.3"
       },
       "engines": {
@@ -13515,17 +13515,16 @@
     },
     "node_modules/shescape-previous": {
       "name": "shescape",
-      "version": "2.1.10",
-      "resolved": "https://registry.npmjs.org/shescape/-/shescape-2.1.10.tgz",
-      "integrity": "sha512-CJvUj3QcmIUqxfSci5x6SjATMbcVPYWnHDPoS6dZeLrB/o0qwPGYyshtylAEKH7eH61WfUYineGz5RJaWXuTbw==",
+      "version": "2.1.7",
+      "resolved": "https://registry.npmjs.org/shescape/-/shescape-2.1.7.tgz",
+      "integrity": "sha512-Y1syY0ggm3ow7mE1zrcK9YrOhAqv/IGbm3+J9S+MXLukwXf/M8yzL3hZp7ubVeSy250TT7M5SVKikTZkKyib6w==",
       "dev": true,
       "license": "MPL-2.0",
       "dependencies": {
-        "@ericcornelissen/lregexp": "^1.0.3",
         "which": "^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0"
       },
       "engines": {
-        "node": "^14.18.0 || ^16.13.0 || ^18 || ^19 || ^20 || ^22 || ^24 || ^25"
+        "node": "^14.18.0 || ^16.13.0 || ^18 || ^19 || ^20 || ^22 || ^24"
       }
     },
     "node_modules/side-channel": {
diff --git a/package.json b/package.json
index f1a9698a..544bdcde 100644
--- a/package.json
+++ b/package.json
@@ -96,7 +96,7 @@
     "prettier": "3.7.3",
     "publint": "0.3.18",
     "rollup": "4.60.0",
-    "shescape-previous": "npm:shescape@2.1.10",
+    "shescape-previous": "npm:shescape@2.1.7",
     "sinon": "21.0.3"
   },
   "scripts": {
@@ -139,7 +139,7 @@
     "mutation:unit": "stryker run config/stryker/unit.js",
     "mutation:integration": "npm run transpile && stryker run config/stryker/integration.js",
     "test": "npm-run-all test:*",
-    "test:unit": "ava test/unit/**/*.test.js",
+    "test:unit": "ava --timeout 59m test/unit/**/*.test.js",
     "test:integration": "npm run transpile && ava test/integration/**/*.test.js --timeout 2m",
     "test:e2e": "node script/busybox-sh.js && node script/double-link-sh.js && ava test/e2e/**/*.test.js --timeout 1m",
     "test:compat": "npm-run-all test:compat:*",
diff --git a/test/unit/unix/bash.test.js b/test/unit/unix/bash.test.js
new file mode 100644
index 00000000..3452cb0e
--- /dev/null
+++ b/test/unit/unix/bash.test.js
@@ -0,0 +1,58 @@
+/**
+ * @overview Contains (additional) unit tests for the escaping functionality for
+ * the Bourne-again shell (Bash).
+ * @license MIT
+ */
+
+import { testProp } from "@fast-check/ava";
+import * as fc from "fast-check";
+
+import * as old from "../../../node_modules/shescape-previous/src/internal/unix/bash.js";
+import * as upd from "../../../src/internal/unix/bash.js";
+
+const numRuns = 5_000_000;
+
+testProp(
+  "escape functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getEscapeFunction();
+    const oldFn = old.getEscapeFunction();
+
+    const got = updFn(arg).replace(/(?<=[:=])(\\~)(?!\\?[\s+\-/0:=]|$)/gu, "~");
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "quote functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getQuoteFunction();
+    const oldFn = old.getQuoteFunction();
+
+    const [updEscape, updQuote] = updFn;
+    const [oldEscape, oldQuote] = oldFn;
+
+    const got = updQuote(updEscape(arg));
+    const want = oldQuote(oldEscape(arg));
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "flag protection functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getFlagProtectionFunction();
+    const oldFn = old.getFlagProtectionFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
diff --git a/test/unit/unix/busybox.test.js b/test/unit/unix/busybox.test.js
new file mode 100644
index 00000000..666b1892
--- /dev/null
+++ b/test/unit/unix/busybox.test.js
@@ -0,0 +1,58 @@
+/**
+ * @overview Contains (additional) unit tests for the escaping functionality for
+ * the BusyBox shell.
+ * @license MIT
+ */
+
+import { testProp } from "@fast-check/ava";
+import * as fc from "fast-check";
+
+import * as old from "../../../node_modules/shescape-previous/src/internal/unix/busybox.js";
+import * as upd from "../../../src/internal/unix/busybox.js";
+
+const numRuns = 5_000_000;
+
+testProp(
+  "escape functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getEscapeFunction();
+    const oldFn = old.getEscapeFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "quote functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getQuoteFunction();
+    const oldFn = old.getQuoteFunction();
+
+    const [updEscape, updQuote] = updFn;
+    const [oldEscape, oldQuote] = oldFn;
+
+    const got = updQuote(updEscape(arg));
+    const want = oldQuote(oldEscape(arg));
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "flag protection functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getFlagProtectionFunction();
+    const oldFn = old.getFlagProtectionFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
diff --git a/test/unit/unix/csh.test.js b/test/unit/unix/csh.test.js
index e85c50ca..57405e22 100644
--- a/test/unit/unix/csh.test.js
+++ b/test/unit/unix/csh.test.js
@@ -9,10 +9,57 @@ import { TextDecoder } from "node:util";
 import { testProp } from "@fast-check/ava";
 import * as fc from "fast-check";
 
+import * as old from "../../../node_modules/shescape-previous/src/internal/unix/csh.js";
 import * as csh from "../../../src/internal/unix/csh.js";
 
+const numRuns = 5_000_000;
 const textDecoder = new TextDecoder("utf-8", { fatal: true });
 
+testProp(
+  "escape functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = csh.getEscapeFunction();
+    const oldFn = old.getEscapeFunction();
+
+    const got = updFn(arg).replace(/\\!$/gu, "!");
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "quote functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = csh.getQuoteFunction();
+    const oldFn = old.getQuoteFunction();
+
+    const [updEscape, updQuote] = updFn;
+    const [oldEscape, oldQuote] = oldFn;
+
+    const got = updQuote(updEscape(arg).replace(/(?<!\\)\\!$/gu, "!"));
+    const want = oldQuote(oldEscape(arg));
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "flag protection functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = csh.getFlagProtectionFunction();
+    const oldFn = old.getFlagProtectionFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
 testProp(
   "characters with 0xA0 when utf-8 encoded",
   [
diff --git a/test/unit/unix/no-shell.test.js b/test/unit/unix/no-shell.test.js
index b9dcff1c..32fe45dc 100644
--- a/test/unit/unix/no-shell.test.js
+++ b/test/unit/unix/no-shell.test.js
@@ -7,8 +7,39 @@
 import { testProp } from "@fast-check/ava";
 import * as fc from "fast-check";
 
+import * as old from "../../../node_modules/shescape-previous/src/internal/unix/no-shell.js";
 import * as nosh from "../../../src/internal/unix/no-shell.js";
 
+const numRuns = 5_000_000;
+
+testProp(
+  "escape functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = nosh.getEscapeFunction();
+    const oldFn = old.getEscapeFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "flag protection functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = nosh.getFlagProtectionFunction();
+    const oldFn = old.getFlagProtectionFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
 testProp("quote function", [fc.string()], (t, arg) => {
   const expected = {
     instanceOf: Error,
diff --git a/test/unit/win/cmd.test.js b/test/unit/win/cmd.test.js
new file mode 100644
index 00000000..91461855
--- /dev/null
+++ b/test/unit/win/cmd.test.js
@@ -0,0 +1,58 @@
+/**
+ * @overview Contains (additional) unit tests for the escaping functionality for
+ * the the Windows Command Prompt.
+ * @license MIT
+ */
+
+import { testProp } from "@fast-check/ava";
+import * as fc from "fast-check";
+
+import * as old from "../../../node_modules/shescape-previous/src/internal/win/cmd.js";
+import * as upd from "../../../src/internal/win/cmd.js";
+
+const numRuns = 5_000_000;
+
+testProp(
+  "escape functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getEscapeFunction();
+    const oldFn = old.getEscapeFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "quote functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getQuoteFunction();
+    const oldFn = old.getQuoteFunction();
+
+    const [updEscape, updQuote] = updFn;
+    const [oldEscape, oldQuote] = oldFn;
+
+    const got = updQuote(updEscape(arg));
+    const want = oldQuote(oldEscape(arg));
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "flag protection functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getFlagProtectionFunction();
+    const oldFn = old.getFlagProtectionFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
diff --git a/test/unit/win/no-shell.test.js b/test/unit/win/no-shell.test.js
index 9f7d3a93..fe904f0f 100644
--- a/test/unit/win/no-shell.test.js
+++ b/test/unit/win/no-shell.test.js
@@ -7,8 +7,39 @@
 import { testProp } from "@fast-check/ava";
 import * as fc from "fast-check";
 
+import * as old from "../../../node_modules/shescape-previous/src/internal/win/no-shell.js";
 import * as nosh from "../../../src/internal/win/no-shell.js";
 
+const numRuns = 5_000_000;
+
+testProp(
+  "escape functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = nosh.getEscapeFunction();
+    const oldFn = old.getEscapeFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "flag protection functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = nosh.getFlagProtectionFunction();
+    const oldFn = old.getFlagProtectionFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
 testProp("quote function", [fc.string()], (t, arg) => {
   const expected = {
     instanceOf: Error,
diff --git a/test/unit/win/powershell.test.js b/test/unit/win/powershell.test.js
new file mode 100644
index 00000000..df45f313
--- /dev/null
+++ b/test/unit/win/powershell.test.js
@@ -0,0 +1,58 @@
+/**
+ * @overview Contains (additional) unit tests for the escaping functionality for
+ * PowerShell.
+ * @license MIT
+ */
+
+import { testProp } from "@fast-check/ava";
+import * as fc from "fast-check";
+
+import * as old from "../../../node_modules/shescape-previous/src/internal/win/powershell.js";
+import * as upd from "../../../src/internal/win/powershell.js";
+
+const numRuns = 5_000_000;
+
+testProp(
+  "escape functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getEscapeFunction();
+    const oldFn = old.getEscapeFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "quote functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getQuoteFunction();
+    const oldFn = old.getQuoteFunction();
+
+    const [updEscape, updQuote] = updFn;
+    const [oldEscape, oldQuote] = oldFn;
+
+    const got = updQuote(updEscape(arg));
+    const want = oldQuote(oldEscape(arg));
+    t.is(got, want);
+  },
+  { numRuns },
+);
+
+testProp(
+  "flag protection functionality is unchanged",
+  [fc.string()],
+  (t, arg) => {
+    const updFn = upd.getFlagProtectionFunction();
+    const oldFn = old.getFlagProtectionFunction();
+
+    const got = updFn(arg);
+    const want = oldFn(arg);
+    t.is(got, want);
+  },
+  { numRuns },
+);