diff --git a/package.json b/package.json
index 023f22f..2aff043 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,7 @@
     "classnames": "^2.2.6",
     "craco-fast-refresh": "^1.0.5",
     "croppr": "^2.3.1",
+    "eslint-loader": "^4.0.2",
     "file-saver": "^2.0.0",
     "gpx-parser-builder": "^1.0.2",
     "leaflet": "^1.6.0",
diff --git a/yarn.lock b/yarn.lock
index 2fe8ccd..5a3cde3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4651,6 +4651,17 @@ eslint-import-resolver-node@^0.3.4:
     debug "^2.6.9"
     resolve "^1.13.1"
 
+eslint-loader@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/eslint-loader/-/eslint-loader-4.0.2.tgz#386a1e21bcb613b3cf2d252a3b708023ccfb41ec"
+  integrity sha512-EDpXor6lsjtTzZpLUn7KmXs02+nIjGcgees9BYjNkWra3jVq5vVa8IoCKgzT2M7dNNeoMBtaSG83Bd40N3poLw==
+  dependencies:
+    find-cache-dir "^3.3.1"
+    fs-extra "^8.1.0"
+    loader-utils "^2.0.0"
+    object-hash "^2.0.3"
+    schema-utils "^2.6.5"
+
 eslint-module-utils@^2.6.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/eslint-module-utils/-/eslint-module-utils-2.6.0.tgz#579ebd094f56af7797d19c9866c9c9486629bfa6"
@@ -8035,6 +8046,11 @@ object-copy@^0.1.0:
     define-property "^0.2.5"
     kind-of "^3.0.3"
 
+object-hash@^2.0.3:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/object-hash/-/object-hash-2.1.1.tgz#9447d0279b4fcf80cff3259bf66a1dc73afabe09"
+  integrity sha512-VOJmgmS+7wvXf8CjbQmimtCnEx3IAoLxI3fp2fbWehxrWBcAQFbk+vcwb6vzR0VZv/eNCJ/27j151ZTwqW/JeQ==
+
 object-inspect@^1.9.0:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.9.0.tgz#c90521d74e1127b67266ded3394ad6116986533a"
@@ -9769,11 +9785,6 @@ react@^17.0.2:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
 
-reactrangeslider@^3.0.6:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/reactrangeslider/-/reactrangeslider-3.0.6.tgz#5f3e1cef24fd3065322d4c01a0010199910f3737"
-  integrity sha1-Xz4c7yT9MGUyLUwBoAEBmZEPNzc=
-
 read-pkg-up@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"