diff --git a/package-lock.json b/package-lock.json
index 01b8fec3..20f6bd00 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -59,6 +59,7 @@
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2",
         "longest": "1.0.1",
@@ -582,6 +583,15 @@
           "requires": {
             "ms": "2.0.0"
           }
+        },
+        "mkdirp": {
+          "version": "0.5.1",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+          "integrity": "sha512-SknJC52obPfGQPnjIkXbmA6+5H15E+fR+E4iR2oQ3zzCLbd7/ONua69R/Gw7AgkTLsRG+r5fzksYwWe1AgTyWA==",
+          "dev": true,
+          "requires": {
+            "minimist": "0.0.8"
+          }
         }
       }
     },
@@ -1081,7 +1091,8 @@
       "version": "1.1.6",
       "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
       "integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "is-builtin-module": {
       "version": "1.0.0",
@@ -1241,6 +1252,7 @@
       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
       "dev": true,
+      "optional": true,
       "requires": {
         "is-buffer": "1.1.6"
       }
@@ -1277,6 +1289,15 @@
           "integrity": "sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=",
           "dev": true
         },
+        "mkdirp": {
+          "version": "0.5.1",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+          "integrity": "sha512-SknJC52obPfGQPnjIkXbmA6+5H15E+fR+E4iR2oQ3zzCLbd7/ONua69R/Gw7AgkTLsRG+r5fzksYwWe1AgTyWA==",
+          "dev": true,
+          "requires": {
+            "minimist": "0.0.8"
+          }
+        },
         "supports-color": {
           "version": "4.4.0",
           "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.4.0.tgz",
@@ -1362,7 +1383,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "lru-cache": {
       "version": "4.1.2",
@@ -1400,11 +1422,18 @@
       "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
     },
     "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==",
       "requires": {
-        "minimist": "0.0.8"
+        "minimist": "^1.2.6"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "1.2.8",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
+          "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA=="
+        }
       }
     },
     "module-not-found-error": {
@@ -1836,7 +1865,8 @@
       "version": "1.6.1",
       "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
       "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "require-uncached": {
       "version": "1.0.3",
@@ -3103,6 +3133,16 @@
         "mkdirp": "0.5.1",
         "ncp": "1.0.1",
         "rimraf": "2.6.2"
+      },
+      "dependencies": {
+        "mkdirp": {
+          "version": "0.5.1",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+          "integrity": "sha512-SknJC52obPfGQPnjIkXbmA6+5H15E+fR+E4iR2oQ3zzCLbd7/ONua69R/Gw7AgkTLsRG+r5fzksYwWe1AgTyWA==",
+          "requires": {
+            "minimist": "0.0.8"
+          }
+        }
       }
     },
     "validate-npm-package-license": {
@@ -3184,6 +3224,17 @@
       "dev": true,
       "requires": {
         "mkdirp": "0.5.1"
+      },
+      "dependencies": {
+        "mkdirp": {
+          "version": "0.5.1",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+          "integrity": "sha512-SknJC52obPfGQPnjIkXbmA6+5H15E+fR+E4iR2oQ3zzCLbd7/ONua69R/Gw7AgkTLsRG+r5fzksYwWe1AgTyWA==",
+          "dev": true,
+          "requires": {
+            "minimist": "0.0.8"
+          }
+        }
       }
     },
     "yallist": {
diff --git a/package.json b/package.json
index 4a7ad5b5..8de9d44a 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "dotenv": "^2.0.0",
     "final-fs": "^1.6.0",
     "inflection": "^1.10.0",
-    "mkdirp": "~0.5.0",
+    "mkdirp": "~0.5.6",
     "optimist": "~0.6.1",
     "parse-database-url": "~0.3.0",
     "pkginfo": "^0.4.0",