diff --git a/sapper/package-lock.json b/sapper/package-lock.json
index 4aafff4d..ac3f35f1 100644
--- a/sapper/package-lock.json
+++ b/sapper/package-lock.json
@@ -105,6 +105,35 @@
         }
       }
     },
+    "@babel/eslint-parser": {
+      "version": "7.11.0",
+      "resolved": "https://registry.npmjs.org/@babel/eslint-parser/-/eslint-parser-7.11.0.tgz",
+      "integrity": "sha512-dJDM2Pc01D9TwKL3Mmz2xgVF9X953RBHq9H4gywbN1q8MrfvXmNHfsCt06vvByBVQqm+9WxMs+doEH/R09TwWQ==",
+      "dev": true,
+      "requires": {
+        "eslint-scope": "5.1.0",
+        "eslint-visitor-keys": "^1.3.0",
+        "semver": "^6.3.0"
+      },
+      "dependencies": {
+        "eslint-scope": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-5.1.0.tgz",
+          "integrity": "sha512-iiGRvtxWqgtx5m8EyQUJihBloE4EnYeGE/bz1wSPwJE6tZuJUtHlhqDM4Xj2ukE8Dyy1+HCZ4hE0fzIVMzb58w==",
+          "dev": true,
+          "requires": {
+            "esrecurse": "^4.1.0",
+            "estraverse": "^4.1.1"
+          }
+        },
+        "semver": {
+          "version": "6.3.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.1.tgz",
+          "integrity": "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==",
+          "dev": true
+        }
+      }
+    },
     "@babel/generator": {
       "version": "7.11.0",
       "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.11.0.tgz",
@@ -1940,20 +1969,6 @@
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       "optional": true
     },
-    "babel-eslint": {
-      "version": "10.1.0",
-      "resolved": "https://registry.npmjs.org/babel-eslint/-/babel-eslint-10.1.0.tgz",
-      "integrity": "sha512-ifWaTHQ0ce+448CYop8AdrQiBsGrnC+bMgfyKFdi6EsPLTAWG+QfyDeM6OH+FmWnKvEq5NnBMLvlBUPKQZoDSg==",
-      "dev": true,
-      "requires": {
-        "@babel/code-frame": "^7.0.0",
-        "@babel/parser": "^7.7.0",
-        "@babel/traverse": "^7.7.0",
-        "@babel/types": "^7.7.0",
-        "eslint-visitor-keys": "^1.0.0",
-        "resolve": "^1.12.0"
-      }
-    },
     "babel-plugin-dynamic-import-node": {
       "version": "2.3.3",
       "resolved": "https://registry.npmjs.org/babel-plugin-dynamic-import-node/-/babel-plugin-dynamic-import-node-2.3.3.tgz",
@@ -4782,12 +4797,19 @@
       "dev": true
     },
     "polka": {
-      "version": "1.0.0-next.11",
-      "resolved": "https://registry.npmjs.org/polka/-/polka-1.0.0-next.11.tgz",
-      "integrity": "sha512-M/HBkS6ILksrDq7uvktCTev81OzuLwNtpxMyYdUhxLKQlMWdsu789XMotQU+p8JY8CM8vx8ML0HudyWjRus/lg==",
+      "version": "1.0.0-next.25",
+      "resolved": "https://registry.npmjs.org/polka/-/polka-1.0.0-next.25.tgz",
+      "integrity": "sha512-LBgDEGL73aeb/5yAwO9JWsqCuqPdvEdwA/n25Y38F4kv6jqFaLbgIWVuZfsv9Sc9O052eoWWrAjGB75oCQvELw==",
       "requires": {
-        "@polka/url": "^1.0.0-next.11",
-        "trouter": "^3.1.0"
+        "@polka/url": "^1.0.0-next.21",
+        "trouter": "^4.0.0"
+      },
+      "dependencies": {
+        "@polka/url": {
+          "version": "1.0.0-next.25",
+          "resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.25.tgz",
+          "integrity": "sha512-j7P6Rgr3mmtdkeDGTe0E/aYyWEWVtc5yFXtHCRHs28/jptDEWfaVOc5T7cblqy1XKPPfCxJc/8DwQ5YgLOZOVQ=="
+        }
       }
     },
     "postcss": {
@@ -5262,9 +5284,9 @@
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     },
     "regexparam": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/regexparam/-/regexparam-1.3.0.tgz",
-      "integrity": "sha512-6IQpFBv6e5vz1QAqI+V4k8P2e/3gRrqfCJ9FI+O1FLQTO+Uz6RXZEZOPmTJ6hlGj7gkERzY5BRCv09whKP96/g=="
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/regexparam/-/regexparam-3.0.0.tgz",
+      "integrity": "sha512-RSYAtP31mvYLkAHrOlh25pCNQ5hWnT106VukGaaFfuJrZFkGRX5GhUAdPqpSDXxOhA2c4akmRuplv1mRqnBn6Q=="
     },
     "regexpp": {
       "version": "3.1.0",
@@ -6026,11 +6048,11 @@
       }
     },
     "trouter": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/trouter/-/trouter-3.1.0.tgz",
-      "integrity": "sha512-3Swwu638QQWOefHLss9cdyLi5/9BKYmXZEXpH0KOFfB9YZwUAwHbDAcoYxaHfqAeFvbi/LqAK7rGkhCr1v1BJA==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/trouter/-/trouter-4.0.0.tgz",
+      "integrity": "sha512-bwwr76BThfiVwAFZqks5cJ+VoKNM3/2Yg1ZwJslkdmAUQ6S0UNoCoGYFDxdw+u1skfexggdmD2p35kW5Td4Cug==",
       "requires": {
-        "regexparam": "^1.3.0"
+        "regexparam": "^3.0.0"
       }
     },
     "tslib": {
diff --git a/sapper/package.json b/sapper/package.json
index 716983b2..f5c4ec6c 100644
--- a/sapper/package.json
+++ b/sapper/package.json
@@ -34,7 +34,7 @@
     "@rollup/plugin-commonjs": "14.0.0",
     "@rollup/plugin-node-resolve": "8.4.0",
     "@rollup/plugin-replace": "2.3.4",
-    "babel-eslint": "10.1.0",
+    "@babel/eslint-parser": "7.11.0",
     "eslint": "7.13.0",
     "eslint-plugin-cypress": "2.11.2",
     "eslint-plugin-svelte3": "2.7.3",