diff --git a/package-lock.json b/package-lock.json
index 4235f8b..040924f 100644
--- a/package-lock.json
+++ b/package-lock.json
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           "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
           "dev": true,
           "requires": {
@@ -9980,7 +9972,7 @@
         },
         "string_decoder": {
           "version": "1.1.1",
-          "resolved": "http://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
           "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
           "dev": true,
           "requires": {
diff --git a/package.json b/package.json
index c2c5428..78b848c 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "debug": "^4.1.0",
     "editor": "^1.0.0",
     "fast-csv": "^2.5.0",
-    "flat": "^4.1.0",
+    "flat": "^5.0.1",
     "get-port": "^4.1.0",
     "hook-stream": "^2.1.2",
     "is-there": "^4.4.3",