diff --git a/package-lock.json b/package-lock.json
index 5585db1..a2d0b35 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -935,14 +935,7 @@
       "version": "git+https://github.com/redblobgames/dual-mesh.git#a0e9604c9b3e87117f1120d012b42cd923f8e62e",
       "from": "git+https://github.com/redblobgames/dual-mesh.git",
       "requires": {
-        "delaunator": "^4.0.0"
-      },
-      "dependencies": {
-        "delaunator": {
-          "version": "4.0.1",
-          "resolved": "https://registry.npmjs.org/delaunator/-/delaunator-4.0.1.tgz",
-          "integrity": "sha512-WNPWi1IRKZfCt/qIDMfERkDp93+iZEmOxN2yy4Jg+Xhv8SLk2UTqqbe1sfiipn0and9QrE914/ihdx82Y/Giag=="
-        }
+        "delaunator": "^3.0.0"
       }
     },
     "@redblobgames/mapgen2": {
@@ -1656,6 +1649,11 @@
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       "dev": true
     },
+    "delaunator": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/delaunator/-/delaunator-3.0.2.tgz",
+      "integrity": "sha512-GNSex8jhF1mcqtNAMYvdZ6Ng7YieYNlbOq2xshyZhLc98P8y5O7Vm6buw4A60wGOd9qvK9RcIMm5qoe4PncAPw=="
+    },
     "delayed-stream": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
@@ -1967,7 +1965,7 @@
       "dependencies": {
         "combined-stream": {
           "version": "1.0.6",
-          "resolved": "http://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
+          "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
           "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
           "requires": {
             "delayed-stream": "~1.0.0"
@@ -4256,9 +4254,9 @@
       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
     },
     "y18n": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
-      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.1.tgz",
+      "integrity": "sha512-wNcy4NvjMYL8gogWWYAO7ZFWFfHcbdbE57tZO8e4cbpj8tfUcwrwqSl3ad8HxpYWCdXcJUCeKKZS62Av1affwQ==",
       "optional": true
     },
     "yallist": {