diff --git a/.eslintrc.cjs b/.eslintrc.cjs
index 6ddcdb6b4ab971..e1188c5820af84 100644
--- a/.eslintrc.cjs
+++ b/.eslintrc.cjs
@@ -108,6 +108,8 @@ module.exports = defineConfig({
     ],
 
     'regexp/no-contradiction-with-assertion': 'error',
+    // in some cases using explicit letter-casing is more performant than the `i` flag
+    'regexp/use-ignore-case': 'off',
   },
   overrides: [
     {
diff --git a/package.json b/package.json
index a504c36a815af6..a00d07010de988 100644
--- a/package.json
+++ b/package.json
@@ -67,7 +67,7 @@
     "eslint-define-config": "^1.24.1",
     "eslint-plugin-import": "^2.28.1",
     "eslint-plugin-n": "^16.2.0",
-    "eslint-plugin-regexp": "^1.15.0",
+    "eslint-plugin-regexp": "^2.1.1",
     "execa": "^8.0.1",
     "fs-extra": "^11.1.1",
     "lint-staged": "^15.0.1",
diff --git a/packages/plugin-legacy/src/index.ts b/packages/plugin-legacy/src/index.ts
index 5e954c1ba07eb1..71723d2a5a75f5 100644
--- a/packages/plugin-legacy/src/index.ts
+++ b/packages/plugin-legacy/src/index.ts
@@ -344,7 +344,8 @@ function viteLegacyPlugin(options: Options = {}): Plugin[] {
             fileName = fileName.replace(/[.-]?\[hash\]/, '-legacy$&')
           } else {
             // entry.js -> entry-legacy.js
-            fileName = fileName.replace(/(.+)\.(.+)/, '$1-legacy.$2')
+            // entry.min.js -> entry-legacy.min.js
+            fileName = fileName.replace(/(.+?)\.(.+)/, '$1-legacy.$2')
           }
 
           return fileName
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 317c943b488f5d..bc07017ec7a711 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -106,8 +106,8 @@ importers:
         specifier: ^16.2.0
         version: 16.2.0(eslint@8.51.0)
       eslint-plugin-regexp:
-        specifier: ^1.15.0
-        version: 1.15.0(eslint@8.51.0)
+        specifier: ^2.1.1
+        version: 2.1.1(eslint@8.51.0)
       execa:
         specifier: ^8.0.1
         version: 8.0.1
@@ -3233,16 +3233,6 @@ packages:
     requiresBuild: true
     optional: true
 
-  /@eslint-community/eslint-utils@4.3.0(eslint@8.51.0):
-    resolution: {integrity: sha512-v3oplH6FYCULtFuCeqyuTd9D2WKO937Dxdq+GmHOLL72TTRriLxz2VLlNfkZRsvj6PKnOPAtuT6dwrs/pA5DvA==}
-    engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
-    peerDependencies:
-      eslint: ^6.0.0 || ^7.0.0 || >=8.0.0
-    dependencies:
-      eslint: 8.51.0
-      eslint-visitor-keys: 3.4.3
-    dev: true
-
   /@eslint-community/eslint-utils@4.4.0(eslint@8.51.0):
     resolution: {integrity: sha512-1/sA4dwrzBAyeUoQ6oxahHKmrZvsnLCg4RfxW3ZFGGmQkSNQPFNLV9CUEFQP1x9EYXHTo5p6xdhZM1Ne9p/AfA==}
     engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
@@ -3253,13 +3243,13 @@ packages:
       eslint-visitor-keys: 3.4.3
     dev: true
 
-  /@eslint-community/regexpp@4.5.0:
-    resolution: {integrity: sha512-vITaYzIcNmjn5tF5uxcZ/ft7/RXGrMUIS9HalWckEOF6ESiwXKoMzAQf2UW0aVd6rnOeExTJVd5hmWXucBKGXQ==}
+  /@eslint-community/regexpp@4.6.2:
+    resolution: {integrity: sha512-pPTNuaAG3QMH+buKyBIGJs3g/S5y0caxw0ygM3YyE6yJFySwiGGSzA+mM3KJ8QQvzeLh3blwgSonkFjgQdxzMw==}
     engines: {node: ^12.0.0 || ^14.0.0 || >=16.0.0}
     dev: true
 
-  /@eslint-community/regexpp@4.6.2:
-    resolution: {integrity: sha512-pPTNuaAG3QMH+buKyBIGJs3g/S5y0caxw0ygM3YyE6yJFySwiGGSzA+mM3KJ8QQvzeLh3blwgSonkFjgQdxzMw==}
+  /@eslint-community/regexpp@4.9.1:
+    resolution: {integrity: sha512-Y27x+MBLjXa+0JWDhykM3+JE+il3kHKAEqabfEWq3SDhZjLYb6/BHL/JKFnH3fe207JaXkyDo685Oc2Glt6ifA==}
     engines: {node: ^12.0.0 || ^14.0.0 || >=16.0.0}
     dev: true
 
@@ -4973,8 +4963,8 @@ packages:
     resolution: {integrity: sha512-NOKm8xhkzAjzFx8B2v5OAHT+u5pRQc2UCa2Vq9jYL/31o2wi9mxBA7LIFs3sV5VSC49z6pEhfbMULvShKj26WA==}
     engines: {node: '>= 6'}
 
-  /comment-parser@1.3.1:
-    resolution: {integrity: sha512-B52sN2VNghyq5ofvUsqZjmk6YkihBX5vMSChmSK9v4ShjKf3Vk5Xcmgpw4o+iIgtrnM/u5FiMpz9VKb8lpBveA==}
+  /comment-parser@1.4.0:
+    resolution: {integrity: sha512-QLyTNiZ2KDOibvFPlZ6ZngVsZ/0gYnE6uTXi5aoDg8ed3AkJAz4sEje3Y8a29hQ1s6A99MZXe47fLAXQ1rTqaw==}
     engines: {node: '>= 12.0.0'}
     dev: true
 
@@ -5762,21 +5752,20 @@ packages:
       semver: 7.5.4
     dev: true
 
-  /eslint-plugin-regexp@1.15.0(eslint@8.51.0):
-    resolution: {integrity: sha512-YEtQPfdudafU7RBIFci81R/Q1yErm0mVh3BkGnXD2Dk8DLwTFdc2ITYH1wCnHKim2gnHfPFgrkh+b2ozyyU7ag==}
-    engines: {node: ^12 || >=14}
+  /eslint-plugin-regexp@2.1.1(eslint@8.51.0):
+    resolution: {integrity: sha512-FGa/idrL5tzMCnGylyx8DCWTX3vDuEtE/CVqTx+yYwe5qY3JRppbNVkOVGIkQF0klVlrG+LxwAXRXTUr5yU5uA==}
+    engines: {node: ^18 || >=20}
     peerDependencies:
-      eslint: '>=6.0.0'
+      eslint: '>=8.44.0'
     dependencies:
-      '@eslint-community/eslint-utils': 4.3.0(eslint@8.51.0)
-      '@eslint-community/regexpp': 4.5.0
-      comment-parser: 1.3.1
+      '@eslint-community/eslint-utils': 4.4.0(eslint@8.51.0)
+      '@eslint-community/regexpp': 4.9.1
+      comment-parser: 1.4.0
       eslint: 8.51.0
-      grapheme-splitter: 1.0.4
-      jsdoctypeparser: 9.0.0
-      refa: 0.11.0
-      regexp-ast-analysis: 0.6.0
-      scslre: 0.2.0
+      jsdoc-type-pratt-parser: 4.0.0
+      refa: 0.12.1
+      regexp-ast-analysis: 0.7.1
+      scslre: 0.3.0
     dev: true
 
   /eslint-scope@7.2.2:
@@ -6412,10 +6401,6 @@ packages:
     resolution: {integrity: sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==}
     dev: true
 
-  /grapheme-splitter@1.0.4:
-    resolution: {integrity: sha512-bzh50DW9kTPM00T8y4o8vQg89Di9oLJVLW/KaOGIXJWP/iqCN6WKYkbNOF04vFLJhwcpYUh9ydh/+5vpOqV4YQ==}
-    dev: true
-
   /graphemer@1.4.0:
     resolution: {integrity: sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==}
     dev: true
@@ -6892,10 +6877,9 @@ packages:
       argparse: 2.0.1
     dev: true
 
-  /jsdoctypeparser@9.0.0:
-    resolution: {integrity: sha512-jrTA2jJIL6/DAEILBEh2/w9QxCuwmvNXIry39Ay/HVfhE3o2yVV0U44blYkqdHA/OKloJEqvJy0xU+GSdE2SIw==}
-    engines: {node: '>=10'}
-    hasBin: true
+  /jsdoc-type-pratt-parser@4.0.0:
+    resolution: {integrity: sha512-YtOli5Cmzy3q4dP26GraSOeAhqecewG04hoO8DY56CH4KJ9Fvv5qKWUCCo3HZob7esJQHCv6/+bnTy72xZZaVQ==}
+    engines: {node: '>=12.0.0'}
     dev: true
 
   /jsesc@0.5.0:
@@ -8581,11 +8565,11 @@ packages:
       strip-indent: 3.0.0
     dev: true
 
-  /refa@0.11.0:
-    resolution: {integrity: sha512-486O8/pQXwj9jV0mVvUnTsxq0uknpBnNJ0eCUhkZqJRQ8KutrT1PhzmumdCeM1hSBF2eMlFPmwECRER4IbKXlQ==}
+  /refa@0.12.1:
+    resolution: {integrity: sha512-J8rn6v4DBb2nnFqkqwy6/NnTYMcgLA+sLr0iIO41qpv0n+ngb7ksag2tMRl0inb1bbO/esUwzW1vbJi7K0sI0g==}
     engines: {node: ^12.0.0 || ^14.0.0 || >=16.0.0}
     dependencies:
-      '@eslint-community/regexpp': 4.6.2
+      '@eslint-community/regexpp': 4.9.1
     dev: true
 
   /regenerate-unicode-properties@10.1.0:
@@ -8609,12 +8593,12 @@ packages:
       '@babel/runtime': 7.23.2
     dev: false
 
-  /regexp-ast-analysis@0.6.0:
-    resolution: {integrity: sha512-OLxjyjPkVH+rQlBLb1I/P/VTmamSjGkvN5PTV5BXP432k3uVz727J7H29GA5IFiY0m7e1xBN7049Wn59FY3DEQ==}
+  /regexp-ast-analysis@0.7.1:
+    resolution: {integrity: sha512-sZuz1dYW/ZsfG17WSAG7eS85r5a0dDsvg+7BiiYR5o6lKCAtUrEwdmRmaGF6rwVj3LcmAeYkOWKEPlbPzN3Y3A==}
     engines: {node: ^12.0.0 || ^14.0.0 || >=16.0.0}
     dependencies:
-      '@eslint-community/regexpp': 4.6.2
-      refa: 0.11.0
+      '@eslint-community/regexpp': 4.9.1
+      refa: 0.12.1
     dev: true
 
   /regexp.prototype.flags@1.5.0:
@@ -8855,12 +8839,13 @@ packages:
       loose-envify: 1.4.0
     dev: false
 
-  /scslre@0.2.0:
-    resolution: {integrity: sha512-4hc49fUMmX3jM0XdFUAPBrs1xwEcdHa0KyjEsjFs+Zfc66mpFpq5YmRgDtl+Ffo6AtJIilfei+yKw8fUn3N88w==}
+  /scslre@0.3.0:
+    resolution: {integrity: sha512-3A6sD0WYP7+QrjbfNA2FN3FsOaGGFoekCVgTyypy53gPxhbkCIjtO6YWgdrfM+n/8sI8JeXZOIxsHjMTNxQ4nQ==}
+    engines: {node: ^14.0.0 || >=16.0.0}
     dependencies:
-      '@eslint-community/regexpp': 4.6.2
-      refa: 0.11.0
-      regexp-ast-analysis: 0.6.0
+      '@eslint-community/regexpp': 4.9.1
+      refa: 0.12.1
+      regexp-ast-analysis: 0.7.1
     dev: true
 
   /scule@1.0.0: