diff --git a/package.json b/package.json
index 65c3933..835afad 100644
--- a/package.json
+++ b/package.json
@@ -12,39 +12,33 @@
     "zim",
     "pack"
   ],
-  "optionalDependencies": {
-    "xz": "^1.3.0"
-  },
   "dependencies": {
-    "animated-gif-detector": "^1.2.0",
-    "cheerio": "*",
-    "child-process": "*",
     "commander": "^2.11.0",
-    "csv-parse": "*",
-    "csv-stringify": "^4.3.1",
-    "encodeurl": "^1.0.1",
-    "expand-home-dir": "*",
     "fs-extra": "^3.0.1",
-    "generic-pool": "^3.1.7",
+    "request-promise-native": "^1.0.5",
+    "sqlite": "^2.8.0",
+    "sqlite3": "*",
+    "cheerio": "*",
     "html-minifier": "^3.5.21",
-    "iconv-lite": "^0.4.17",
     "langs": "^2.0.0",
-    "lzma-native": "*",
-    "mime-db": "*",
+    "encodeurl": "^1.0.1",
+    "iconv-lite": "^0.4.17",
+    "quick-lru": "^1.0.0",
     "mime-types": "*",
     "mmmagic": "*",
     "moment": "^2.22.2",
     "moment-duration-format": "^2.2.2",
-    "mozjpeg": "*",
+    "expand-home-dir": "*",
+    "lzma-native": "*",
+    "uuid": "*",
+    "csv-parse": "*",
     "mz": "^2.6.0",
-    "promised-read": "^2.0.1",
-    "quick-lru": "^1.0.0",
-    "request-promise-native": "^1.0.5",
-    "sanitize-filename": "^1.6.1",
     "sharp": "^0.17.3",
-    "sqlite": "^2.8.0",
-    "sqlite3": "*",
-    "uuid": "*"
+    "generic-pool": "^3.1.7",
+    "mozjpeg": "*",
+    "child-process": "*",
+    "animated-gif-detector": "^1.2.0",
+    "mime-db": "*"
   },
   "engines": {
     "node": ">=8.0.0"
diff --git a/tools/package.json b/tools/package.json
new file mode 100644
index 0000000..82d94c6
--- /dev/null
+++ b/tools/package.json
@@ -0,0 +1,37 @@
+{
+  "name": "unzimmer",
+  "version": "",
+  "description": "",
+  "main": "unzimmer.js",
+  "scripts": {
+    "test": "echo no tests"
+  },
+  "private": true,
+  "keywords": [
+    "mediawiki",
+    "zim",
+    "unpack"
+  ],
+  "dependencies": {
+    "xz": "^1.3.0",
+    "expand-home-dir": "*",
+    "fs-extra": "^3.0.1",
+    "mime-db": "*",
+    "mime-types": "*",
+    "generic-pool": "^3.1.7",
+    "promised-read": "^2.0.1",
+    "cheerio": "*",
+    "commander": "^2.11.0",
+    "csv-stringify": "^4.3.1",
+    "moment": "^2.22.2",
+    "moment-duration-format": "^2.2.2"
+  },
+  "engines": {
+    "node": ">=8.0.0"
+  },
+  "bin": {
+    "unzimmer": "./unzimmer.js"
+  },
+  "author": "Vadim Shlykahov",
+  "license": "ISC"
+}
diff --git a/unzimmer.js b/tools/unzimmer.js
similarity index 100%
rename from unzimmer.js
rename to tools/unzimmer.js
index 1ec7dd7..a1ba616 100755
--- a/unzimmer.js
+++ b/tools/unzimmer.js
@@ -10,8 +10,8 @@
 const os = require('os')
 const osProcess = require('process')
 const osPath = require( 'path' )
-const expandHomeDir = require( 'expand-home-dir' )
 
+const expandHomeDir = require( 'expand-home-dir' )
 const fs = require( 'fs-extra' )
 const mimeDb = require( 'mime-db' )
 const mime = require( 'mime-types' )