diff --git a/token-swap/js/client/util/store.js b/token-swap/js/client/util/store.js
index 24c11020..8e2c9908 100644
--- a/token-swap/js/client/util/store.js
+++ b/token-swap/js/client/util/store.js
@@ -6,7 +6,7 @@
 
 import path from 'path';
 import fs from 'mz/fs';
-import mkdirp from 'mkdirp-promise';
+import mkdirp from 'mkdirp';
 
 export class Store {
   static getDir(): string {
diff --git a/token-swap/js/flow-typed/mkdirp-promise_vx.x.x.js b/token-swap/js/flow-typed/mkdirp_vx.x.x.js
similarity index 67%
rename from token-swap/js/flow-typed/mkdirp-promise_vx.x.x.js
rename to token-swap/js/flow-typed/mkdirp_vx.x.x.js
index 35bb7207..deb28478 100644
--- a/token-swap/js/flow-typed/mkdirp-promise_vx.x.x.js
+++ b/token-swap/js/flow-typed/mkdirp_vx.x.x.js
@@ -1,10 +1,10 @@
 // flow-typed signature: 65e18196703cbb222ea294226e99826d
-// flow-typed version: <<STUB>>/mkdirp-promise_v5.0.1/flow_v0.84.0
+// flow-typed version: <<STUB>>/mkdirp_v5.0.1/flow_v0.84.0
 
 /**
  * This is an autogenerated libdef stub for:
  *
- *   'mkdirp-promise'
+ *   'mkdirp'
  *
  * Fill this stub out by replacing all the `any` types.
  *
@@ -13,7 +13,7 @@
  * https://github.com/flowtype/flow-typed
  */
 
-declare module 'mkdirp-promise' {
+declare module 'mkdirp' {
   declare module.exports: any;
 }
 
@@ -22,11 +22,11 @@ declare module 'mkdirp-promise' {
  * require those files directly. Feel free to delete any files that aren't
  * needed.
  */
-declare module 'mkdirp-promise/lib/index' {
+declare module 'mkdirp/lib/index' {
   declare module.exports: any;
 }
 
 // Filename aliases
-declare module 'mkdirp-promise/lib/index.js' {
-  declare module.exports: $Exports<'mkdirp-promise/lib/index'>;
+declare module 'mkdirp/lib/index.js' {
+  declare module.exports: $Exports<'mkdirp/lib/index'>;
 }
diff --git a/token-swap/js/package-lock.json b/token-swap/js/package-lock.json
index dfc4531b..ec665305 100644
--- a/token-swap/js/package-lock.json
+++ b/token-swap/js/package-lock.json
@@ -3899,6 +3899,17 @@
         "inherits": "~2.0.0",
         "mkdirp": ">=0.5 0",
         "rimraf": "2"
+      },
+      "dependencies": {
+        "mkdirp": {
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        }
       }
     },
     "function-bind": {
@@ -4849,7 +4860,8 @@
     "minimist": {
       "version": "1.2.5",
       "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
-      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
+      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
+      "dev": true
     },
     "mixin-deep": {
       "version": "1.3.2",
@@ -4875,20 +4887,9 @@
       }
     },
     "mkdirp": {
-      "version": "0.5.5",
-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
-      "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
-      "requires": {
-        "minimist": "^1.2.5"
-      }
-    },
-    "mkdirp-promise": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/mkdirp-promise/-/mkdirp-promise-5.0.1.tgz",
-      "integrity": "sha1-6bj2jlUsaKnBcTuEiD96HdA5uKE=",
-      "requires": {
-        "mkdirp": "*"
-      }
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
+      "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw=="
     },
     "ms": {
       "version": "2.0.0",
@@ -6727,6 +6728,17 @@
       "dev": true,
       "requires": {
         "mkdirp": "^0.5.1"
+      },
+      "dependencies": {
+        "mkdirp": {
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        }
       }
     },
     "ws": {
diff --git a/token-swap/js/package.json b/token-swap/js/package.json
index 2be86b8a..2dd4acea 100644
--- a/token-swap/js/package.json
+++ b/token-swap/js/package.json
@@ -51,7 +51,7 @@
     "buffer-layout": "^1.2.0",
     "dotenv": "8.2.0",
     "json-to-pretty-yaml": "^1.2.2",
-    "mkdirp-promise": "^5.0.1"
+    "mkdirp": "1.0.4"
   },
   "devDependencies": {
     "@babel/cli": "^7.11.6",
diff --git a/token/js/client/util/store.js b/token/js/client/util/store.js
index 24c11020..8e2c9908 100644
--- a/token/js/client/util/store.js
+++ b/token/js/client/util/store.js
@@ -6,7 +6,7 @@
 
 import path from 'path';
 import fs from 'mz/fs';
-import mkdirp from 'mkdirp-promise';
+import mkdirp from 'mkdirp';
 
 export class Store {
   static getDir(): string {
diff --git a/token/js/flow-typed/mkdirp-promise_vx.x.x.js b/token/js/flow-typed/mkdirp_vx.x.x.js
similarity index 67%
rename from token/js/flow-typed/mkdirp-promise_vx.x.x.js
rename to token/js/flow-typed/mkdirp_vx.x.x.js
index 35bb7207..deb28478 100644
--- a/token/js/flow-typed/mkdirp-promise_vx.x.x.js
+++ b/token/js/flow-typed/mkdirp_vx.x.x.js
@@ -1,10 +1,10 @@
 // flow-typed signature: 65e18196703cbb222ea294226e99826d
-// flow-typed version: <<STUB>>/mkdirp-promise_v5.0.1/flow_v0.84.0
+// flow-typed version: <<STUB>>/mkdirp_v5.0.1/flow_v0.84.0
 
 /**
  * This is an autogenerated libdef stub for:
  *
- *   'mkdirp-promise'
+ *   'mkdirp'
  *
  * Fill this stub out by replacing all the `any` types.
  *
@@ -13,7 +13,7 @@
  * https://github.com/flowtype/flow-typed
  */
 
-declare module 'mkdirp-promise' {
+declare module 'mkdirp' {
   declare module.exports: any;
 }
 
@@ -22,11 +22,11 @@ declare module 'mkdirp-promise' {
  * require those files directly. Feel free to delete any files that aren't
  * needed.
  */
-declare module 'mkdirp-promise/lib/index' {
+declare module 'mkdirp/lib/index' {
   declare module.exports: any;
 }
 
 // Filename aliases
-declare module 'mkdirp-promise/lib/index.js' {
-  declare module.exports: $Exports<'mkdirp-promise/lib/index'>;
+declare module 'mkdirp/lib/index.js' {
+  declare module.exports: $Exports<'mkdirp/lib/index'>;
 }
diff --git a/token/js/package-lock.json b/token/js/package-lock.json
index de5754fb..6b6a0315 100644
--- a/token/js/package-lock.json
+++ b/token/js/package-lock.json
@@ -4344,6 +4344,17 @@
         "inherits": "~2.0.0",
         "mkdirp": ">=0.5 0",
         "rimraf": "2"
+      },
+      "dependencies": {
+        "mkdirp": {
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        }
       }
     },
     "function-bind": {
@@ -5292,7 +5303,8 @@
     "minimist": {
       "version": "1.2.5",
       "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
-      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
+      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
+      "dev": true
     },
     "mixin-deep": {
       "version": "1.3.2",
@@ -5318,20 +5330,9 @@
       }
     },
     "mkdirp": {
-      "version": "0.5.5",
-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
-      "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
-      "requires": {
-        "minimist": "^1.2.5"
-      }
-    },
-    "mkdirp-promise": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/mkdirp-promise/-/mkdirp-promise-5.0.1.tgz",
-      "integrity": "sha1-6bj2jlUsaKnBcTuEiD96HdA5uKE=",
-      "requires": {
-        "mkdirp": "*"
-      }
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
+      "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw=="
     },
     "ms": {
       "version": "2.0.0",
@@ -7237,6 +7238,17 @@
       "dev": true,
       "requires": {
         "mkdirp": "^0.5.1"
+      },
+      "dependencies": {
+        "mkdirp": {
+          "version": "0.5.5",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+          "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.5"
+          }
+        }
       }
     },
     "ws": {
diff --git a/token/js/package.json b/token/js/package.json
index b6fdd3b2..aae8665f 100644
--- a/token/js/package.json
+++ b/token/js/package.json
@@ -49,7 +49,7 @@
     "bn.js": "^5.0.0",
     "buffer-layout": "^1.2.0",
     "dotenv": "8.2.0",
-    "mkdirp-promise": "^5.0.1"
+    "mkdirp": "1.0.4"
   },
   "devDependencies": {
     "@babel/cli": "^7.10.5",