diff --git a/package-lock.json b/package-lock.json
index e8a27ba..144505a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2175,9 +2175,9 @@
       }
     },
     "node_modules/proj4": {
-      "version": "2.20.8",
-      "resolved": "https://registry.npmjs.org/proj4/-/proj4-2.20.8.tgz",
-      "integrity": "sha512-1C8sfT4xY4PAPwk0MroFBTGF4R4bzDXdmPQTGYVLsoNssrZ9odzObxS2dTeGBty8jW8KO7h16C1Hs2JP+ctfFw==",
+      "version": "2.21.0",
+      "resolved": "https://registry.npmjs.org/proj4/-/proj4-2.21.0.tgz",
+      "integrity": "sha512-33HfDftqw8kY+Cl1dcL16SJuqTSzYxmz4re7Nmhk+fs1/N1fFrAkkF579msQTR/4fLeJVSNne8/gpoCz0fk1uw==",
       "dev": true,
       "dependencies": {
         "mgrs": "1.0.0",
@@ -2185,6 +2185,14 @@
       },
       "funding": {
         "url": "https://github.com/sponsors/ahocevar"
+      },
+      "peerDependencies": {
+        "geotiff": "*"
+      },
+      "peerDependenciesMeta": {
+        "geotiff": {
+          "optional": true
+        }
       }
     },
     "node_modules/punycode": {
@@ -4308,9 +4316,9 @@
       "requires": {}
     },
     "proj4": {
-      "version": "2.20.8",
-      "resolved": "https://registry.npmjs.org/proj4/-/proj4-2.20.8.tgz",
-      "integrity": "sha512-1C8sfT4xY4PAPwk0MroFBTGF4R4bzDXdmPQTGYVLsoNssrZ9odzObxS2dTeGBty8jW8KO7h16C1Hs2JP+ctfFw==",
+      "version": "2.21.0",
+      "resolved": "https://registry.npmjs.org/proj4/-/proj4-2.21.0.tgz",
+      "integrity": "sha512-33HfDftqw8kY+Cl1dcL16SJuqTSzYxmz4re7Nmhk+fs1/N1fFrAkkF579msQTR/4fLeJVSNne8/gpoCz0fk1uw==",
       "dev": true,
       "requires": {
         "mgrs": "1.0.0",