diff --git a/package-lock.json b/package-lock.json
index bcf6f9a..a41c595 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,75 @@
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@@ -350,6 +421,13 @@
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-    "ware": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/ware/-/ware-1.3.0.tgz",
-      "integrity": "sha1-0bFPOdLiy0q4xAmPdW/ksWTkc9Q=",
-      "dev": true,
-      "requires": {
-        "wrap-fn": "0.1.5"
-      }
-    },
     "which": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
@@ -8686,23 +8596,6 @@
         "strip-ansi": "3.0.1"
       }
     },
-    "wrap-fn": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/wrap-fn/-/wrap-fn-0.1.5.tgz",
-      "integrity": "sha1-8htuQQFv9KfjFyDbxjoJAWvfmEU=",
-      "dev": true,
-      "requires": {
-        "co": "3.1.0"
-      },
-      "dependencies": {
-        "co": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/co/-/co-3.1.0.tgz",
-          "integrity": "sha1-TqVOpaCJOBUxheFSEMaNkJK8G3g=",
-          "dev": true
-        }
-      }
-    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -8766,13 +8659,14 @@
       }
     },
     "yauzl": {
-      "version": "2.9.1",
-      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.9.1.tgz",
-      "integrity": "sha1-qBmB6nCleUYTOIPwKcWCGok1mn8=",
+      "version": "2.10.0",
+      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
+      "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
       "dev": true,
+      "optional": true,
       "requires": {
-        "buffer-crc32": "0.2.13",
-        "fd-slicer": "1.0.1"
+        "buffer-crc32": "~0.2.3",
+        "fd-slicer": "~1.1.0"
       }
     }
   }
diff --git a/package.json b/package.json
index f987985..05cbf29 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
   "homepage": "https://github.com/gw2ocs/gw2icon#readme",
   "devDependencies": {
     "gulp": "^3.9.1",
-    "gulp-imagemin": "^4.1.0",
+    "gulp-imagemin": "^6.2.0",
     "gulp-rename": "^1.4.0",
     "gulp-sass": "^4.0.2",
     "gulp-sass-lint": "^1.3.4",