diff --git a/package-lock.json b/package-lock.json
index 90e247e..007f2d5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -28,7 +28,7 @@
         "http-shutdown": "1.2.2",
         "morgan": "1.10.0",
         "pbf": "3.2.1",
-        "proj4": "2.9.0",
+        "proj4": "2.9.1",
         "request": "2.88.2",
         "sanitize-filename": "1.6.3",
         "sharp": "0.32.6",
@@ -6741,12 +6741,12 @@
       }
     },
     "node_modules/proj4": {
-      "version": "2.9.0",
-      "resolved": "https://registry.npmjs.org/proj4/-/proj4-2.9.0.tgz",
-      "integrity": "sha512-BoDXEzCVnRJVZoOKA0QHTFtYoE8lUxtX1jST38DJ8U+v1ixY70Kpwi0Llu6YqSWEH2xqu4XMEBNGcgeRIEywoA==",
+      "version": "2.9.1",
+      "resolved": "https://registry.npmjs.org/proj4/-/proj4-2.9.1.tgz",
+      "integrity": "sha512-hhquvYHnqz8nf8U9CODRLGSL7bUg4p5oVkZI4oWxX7whNcSbn2xdNA1WnF1jye+ezrtuSiPVao9LEHlKeQA5uA==",
       "dependencies": {
         "mgrs": "1.0.0",
-        "wkt-parser": "^1.3.1"
+        "wkt-parser": "^1.3.3"
       }
     },
     "node_modules/promise-inflight": {
@@ -8702,9 +8702,9 @@
       }
     },
     "node_modules/wkt-parser": {
-      "version": "1.3.2",
-      "resolved": "https://registry.npmjs.org/wkt-parser/-/wkt-parser-1.3.2.tgz",
-      "integrity": "sha512-A26BOOo7sHAagyxG7iuRhnKMO7Q3mEOiOT4oGUmohtN/Li5wameeU4S6f8vWw6NADTVKljBs8bzA8JPQgSEMVQ=="
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/wkt-parser/-/wkt-parser-1.3.3.tgz",
+      "integrity": "sha512-ZnV3yH8/k58ZPACOXeiHaMuXIiaTk1t0hSUVisbO0t4RjA5wPpUytcxeyiN2h+LZRrmuHIh/1UlrR9e7DHDvTw=="
     },
     "node_modules/wordwrap": {
       "version": "1.0.0",
diff --git a/package.json b/package.json
index 57f227d..3808d84 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "http-shutdown": "1.2.2",
     "morgan": "1.10.0",
     "pbf": "3.2.1",
-    "proj4": "2.9.0",
+    "proj4": "2.9.1",
     "request": "2.88.2",
     "sanitize-filename": "1.6.3",
     "sharp": "0.32.6",