diff --git a/package-lock.json b/package-lock.json
index 89ff0ba..d52b25d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,40 +1,14 @@
 {
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+  "version": "0.5.1",
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@@ -147,38 +121,10 @@
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-      "resolved": "https://registry.npmjs.org/app-builder-bin-win/-/app-builder-bin-win-1.8.6.tgz",
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-      "dev": true,
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+      "resolved": "https://registry.npmjs.org/app-builder-bin/-/app-builder-bin-1.9.0.tgz",
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@@ -403,13 +349,13 @@
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       "dev": true,
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-        "7zip-bin": "~3.1.0",
-        "app-builder-bin": "1.8.6",
+        "7zip-bin": "~4.0.2",
+        "app-builder-bin": "1.9.0",
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@@ -419,7 +365,7 @@
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-        "source-map-support": "^0.5.5",
+        "source-map-support": "^0.5.6",
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@@ -840,14 +786,14 @@
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-      "resolved": "https://registry.npmjs.org/dmg-builder/-/dmg-builder-4.1.8.tgz",
-      "integrity": "sha512-OuGpvbnzu5MC7stpTdYSE3rWiPPOd550X2N/Djomz5PbIZ4Xd96IBM1qd2TDhrZUnIT/un++ns0/FWqd1Wopyg==",
+      "version": "4.10.0",
+      "resolved": "https://registry.npmjs.org/dmg-builder/-/dmg-builder-4.10.0.tgz",
+      "integrity": "sha512-gjdm90BGIQ4c6szDdqc2x9+xl+Uy1TRpXDttDCxiAxXL53bG+zC3avKEh3c1xrkNaCzOADe+jow1gkec5cWOqg==",
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-        "builder-util": "^5.8.1",
-        "electron-builder-lib": "~20.13.2",
+        "builder-util": "^5.10.0",
+        "electron-builder-lib": "~20.14.4",
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         "iconv-lite": "^0.4.23",
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@@ -930,17 +876,17 @@
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-      "resolved": "https://registry.npmjs.org/electron-builder/-/electron-builder-20.13.5.tgz",
-      "integrity": "sha512-QhgUq1GKGEJUO6C0jjJeNwAymvHJb4mfUmUfVuVLoVNoOgmAC9AYSQuiw214TswyhlOh+yfXNG6qC4MUaoIlcA==",
+      "version": "20.14.4",
+      "resolved": "https://registry.npmjs.org/electron-builder/-/electron-builder-20.14.4.tgz",
+      "integrity": "sha512-jbTtxTdANKggCZfaY74KDfkiT0s9VhyEqCLsQ0gXiMpCBnFvCZybwEtZl37GPYRsjeadg9htO6djWaV2hyYCDA==",
       "dev": true,
       "requires": {
         "bluebird-lst": "^1.0.5",
-        "builder-util": "5.8.1",
+        "builder-util": "5.10.0",
         "builder-util-runtime": "4.2.1",
         "chalk": "^2.4.1",
-        "dmg-builder": "4.1.8",
-        "electron-builder-lib": "20.13.5",
+        "dmg-builder": "4.10.0",
+        "electron-builder-lib": "20.14.4",
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@@ -1037,22 +983,22 @@
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+      "version": "20.14.4",
+      "resolved": "https://registry.npmjs.org/electron-builder-lib/-/electron-builder-lib-20.14.4.tgz",
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       "dev": true,
       "requires": {
-        "7zip-bin": "~3.1.0",
-        "app-builder-bin": "1.8.6",
+        "7zip-bin": "~4.0.2",
+        "app-builder-bin": "1.9.0",
         "async-exit-hook": "^2.0.1",
         "bluebird-lst": "^1.0.5",
-        "builder-util": "5.8.1",
+        "builder-util": "5.10.0",
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         "chromium-pickle-js": "^0.2.0",
         "debug": "^3.1.0",
         "ejs": "^2.6.1",
         "electron-osx-sign": "0.4.10",
-        "electron-publish": "20.13.2",
+        "electron-publish": "20.14.4",
         "fs-extra-p": "^4.6.0",
         "hosted-git-info": "^2.6.0",
         "is-ci": "^1.1.0",
@@ -1065,6 +1011,7 @@
         "read-config-file": "3.0.1",
         "sanitize-filename": "^1.6.1",
         "semver": "^5.5.0",
+        "stream-json": "^0.6.1",
         "temp-file": "^3.1.2"
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@@ -1129,13 +1076,13 @@
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-      "resolved": "https://registry.npmjs.org/electron-publish/-/electron-publish-20.13.2.tgz",
-      "integrity": "sha512-Mg/GdDZdUgQep9Ex/NpWM8yeq1Lp2z5k42FB1awW5rz+mSvS/O0MQLJVZ7RaSzEFEgkhBoNlhU7GqirzSxJQTw==",
+      "version": "20.14.4",
+      "resolved": "https://registry.npmjs.org/electron-publish/-/electron-publish-20.14.4.tgz",
+      "integrity": "sha512-4U/+k3A52BqGBGTRx1U6bAe9qDV1NS6sw4gREfplN6QtWYIwslTObxVvvqYVtnQ8k3jYWiIA+FXQrA0jhDMvnA==",
       "dev": true,
       "requires": {
         "bluebird-lst": "^1.0.5",
-        "builder-util": "^5.8.1",
+        "builder-util": "^5.10.0",
         "builder-util-runtime": "^4.2.1",
         "chalk": "^2.4.1",
         "fs-extra-p": "^4.6.0",
@@ -2461,6 +2408,12 @@
         "error-ex": "^1.2.0"
       }
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+    "parser-toolkit": {
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/parser-toolkit/-/parser-toolkit-0.0.5.tgz",
+      "integrity": "sha1-7EthcpyGMYtW6pcb+6azxnLWLAE=",
+      "dev": true
+    },
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@@ -3032,6 +2985,15 @@
       "integrity": "sha1-5sgLYjEj19gM8TLOU480YokHJQI=",
       "dev": true
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+    "stream-json": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/stream-json/-/stream-json-0.6.1.tgz",
+      "integrity": "sha512-Tmhl5yUVusgkgCiWnoHD1BA8/LqFX5/OlYj+YMCgUuUMjbacQvSWV8p1grbKvzP6s4EBS4nK5WNsMHX7kugzyg==",
+      "dev": true,
+      "requires": {
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+      }
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diff --git a/package.json b/package.json
index 756ff35..266f955 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "szkola-puzzle",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "description": "Puzzle dla p. Cwołek",
   "author": {
     "name": "krzysdz",
@@ -108,7 +108,7 @@
   "license": "MIT",
   "devDependencies": {
     "electron": "^2.0.1",
-    "electron-builder": "^20.13.5",
+    "electron-builder": "^20.14.4",
     "eslint": "^4.19.1"
   },
   "dependencies": {