diff --git a/pkgs/top-level/node-packages-generated.nix b/pkgs/top-level/node-packages-generated.nix
index a185eaee1d0..62773f16f56 100644
--- a/pkgs/top-level/node-packages-generated.nix
+++ b/pkgs/top-level/node-packages-generated.nix
@@ -1064,6 +1064,16 @@
       { name = "sigmund"; range = "~1.0.0"; }
     ];
   }
+  {
+    baseName = "mkdirp";
+    version = "0.3.5";
+    fullName = "mkdirp-*";
+    hash = "8ae9c5107acb41110106224f5e7be2b50b00d15d062ea7941301c111b863fd26";
+    patchLatest = false;
+    topLevel = true;
+    dependencies = [
+    ];
+  }
   {
     baseName = "mkdirp";
     version = "0.3.5";
@@ -1322,9 +1332,9 @@
   }
   {
     baseName = "optimist";
-    version = "0.5.0";
+    version = "0.5.1";
     fullName = "optimist-*";
-    hash = "b0c4b65a456618f179946e0b0641643b9d70ea5d884afa5bbf94419f740b1ccf";
+    hash = "89307bc0c5f010a0ad3f53aaf5ed3a63bd0763c2239e5e26fafb60a2eb0df195";
     patchLatest = false;
     topLevel = true;
     dependencies = [
diff --git a/pkgs/top-level/node-packages.json b/pkgs/top-level/node-packages.json
index 516754fdef5..aee35a797b2 100644
--- a/pkgs/top-level/node-packages.json
+++ b/pkgs/top-level/node-packages.json
@@ -33,4 +33,5 @@
 , "semver"
 , "npm2nix"
 , "ansi-remover"
+, "mkdirp"
 ]