diff --git a/.gitignore b/.gitignore
index 9f2a47c..fb3cdf9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,5 +5,6 @@ tmp
 !public/icons/manifest.json
 *.yaml
 *.pickle
+*.npy
 __pycache__/
 config.py
diff --git a/ikeagen.py b/ikeagen.py
index 955bc8d..717f61f 100755
--- a/ikeagen.py
+++ b/ikeagen.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python3
-import pickle
 
+import numpy as np
 import os
 import random
 from PIL import Image
@@ -9,7 +9,8 @@ import utils
 
 
 def gen():
-    table = [[[0 for i in range(221)] for j in range(221)] for k in range(221)]
+    n = 221
+    table = np.empty(shape=(n, n, n), dtype=np.int)
     crawldata = utils.crawl_data()
     names = {result["name"] for result in crawldata}
     count = 0
@@ -27,17 +28,6 @@ def gen():
     return table, count
 
 
-def save(data):
-    with open('ikeaname.pickle', 'wb') as outfile:
-        pickle.dump(data, outfile, pickle.HIGHEST_PROTOCOL)
-
-
-def load():
-    with open('ikeaname.pickle', "rb") as inputfile:
-        table = pickle.load(inputfile)
-    return table
-
-
 def letter(a, b):
     mylist = []
     for c in range(221):
@@ -62,13 +52,11 @@ def image(table):
     img.save('image.png')
 
 
-if os.path.isfile('ikeaname.pickle'):
-    table, count = load()
-    # image(table)
-
+if os.path.isfile('ikeaname.npy') and False:  # Loading uses twice the memory and is therefore disabled
+    table, count = np.load('ikeaname.npy')
 else:
     table, count = gen()
-    save((table, count))
+    np.save('ikeaname.npy', (table, count), )
 
 
 def generate():
diff --git a/requirements.txt b/requirements.txt
index 46c5b1e..0ab1747 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,17 +1,41 @@
+numpy
+asn1crypto==0.24.0
+attrs==17.4.0
+Automat==0.6.0
 beautifulsoup4==4.6.0
 certifi==2017.11.5
+cffi==1.11.2
 chardet==3.0.4
 click==6.7
+constantly==15.1.0
+cryptography==2.1.4
+cssselect==1.0.3
 Flask==0.12.2
 future==0.16.0
+hyperlink==17.3.1
 idna==2.6
+incremental==17.5.0
 itsdangerous==0.24
 Jinja2==2.10
+lxml==4.1.1
 MarkupSafe==1.0
 olefile==0.44
-Pillow==4.3.0
+parsel==1.3.1
+Pillow==5.0.0
+pyasn1==0.4.2
+pyasn1-modules==0.2.1
+pycparser==2.18
+PyDispatcher==2.0.5
+pyOpenSSL==17.5.0
 python-telegram-bot==9.0.0
 PyYAML==3.12
+queuelib==1.4.2
 requests==2.18.4
+Scrapy==1.5.0
+service-identity==17.0.0
+six==1.11.0
+Twisted==17.9.0
 urllib3==1.22
-Werkzeug==0.13
+w3lib==1.18.0
+Werkzeug==0.14.1
+zope.interface==4.4.3