diff --git a/02-preprocess/package-lock.json b/02-preprocess/package-lock.json
index b837919..537b6fc 100644
--- a/02-preprocess/package-lock.json
+++ b/02-preprocess/package-lock.json
@@ -345,18 +345,18 @@
       "dev": true
     },
     "minimist": {
-      "version": "0.0.8",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-      "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
+      "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==",
       "dev": true
     },
     "mkdirp": {
-      "version": "0.5.1",
-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+      "version": "0.5.6",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
+      "integrity": "sha512-FP+p8RB8OWpF3YZBCrP5gtADmtXApB5AMLn+vdyA+PyxCjrCs00mjyUozssO33cwDeT3wNGdLxJ5M//YqtHAJw==",
       "dev": true,
       "requires": {
-        "minimist": "0.0.8"
+        "minimist": "^1.2.6"
       }
     },
     "node-releases": {
diff --git a/02-preprocess/package.json b/02-preprocess/package.json
index 98b41ff..e6a5a27 100644
--- a/02-preprocess/package.json
+++ b/02-preprocess/package.json
@@ -15,7 +15,7 @@
     "@endorphinjs/rollup-plugin-endorphin": "^0.3.0",
     "autoprefixer": "^9.6.1",
     "endorphin": "^0.5.2",
-    "mkdirp": "^0.5.1",
+    "mkdirp": "^0.5.6",
     "postcss": "^7.0.17",
     "rollup": "^1.17.0",
     "rollup-plugin-node-resolve": "^5.2.0",