diff --git a/django/university/cache/statistics_cache.json b/django/university/cache/statistics_cache.json
deleted file mode 100644
index 478bbb1..0000000
--- a/django/university/cache/statistics_cache.json
+++ /dev/null
@@ -1 +0,0 @@
-{"1": 0, "2": 0, "3": 1, "4": 0, "5": 0, "6": 0, "7": 0, "8": 0, "9": 1, "10": 0, "11": 0, "12": 0, "13": 0, "14": 0, "15": 0, "16": 0, "17": 0, "18": 0, "19": 0, "20": 0, "21": 0, "22": 0, "23": 0, "24": 0, "25": 0, "26": 0, "27": 0, "28": 0, "29": 0, "30": 0, "31": 0, "32": 0, "33": 0, "34": 0, "35": 0, "36": 0, "37": 0, "38": 0, "39": 0, "40": 0, "41": 0, "42": 0, "43": 0, "44": 0, "45": 0, "46": 0, "47": 0, "48": 0, "49": 0, "50": 0, "51": 0, "52": 0, "53": 0, "54": 0, "55": 0, "56": 0, "57": 0, "58": 0, "59": 0, "60": 0, "61": 0, "62": 0, "63": 0, "64": 0, "65": 0, "66": 0, "67": 0, "68": 0, "69": 0, "70": 0, "71": 0, "72": 0, "73": 0, "74": 0, "75": 0, "76": 0, "77": 0, "78": 0, "79": 0, "80": 0, "81": 0, "82": 0, "83": 0, "84": 0, "85": 0, "86": 0, "87": 0, "88": 0, "89": 0, "90": 0, "91": 0, "92": 0, "93": 0, "94": 0, "95": 0, "96": 0, "97": 0, "98": 0, "99": 0, "100": 0, "101": 0, "102": 0, "103": 0, "104": 0, "105": 0, "106": 0, "107": 0, "108": 0, "109": 0, "110": 1, "111": 0, "112": 0, "113": 0, "114": 0, "115": 0, "116": 0, "117": 0, "118": 0, "119": 0, "120": 0, "121": 0, "122": 0, "123": 0, "124": 0, "125": 0, "126": 0, "127": 0, "128": 0, "129": 0, "130": 0, "131": 0, "132": 0, "133": 0, "134": 0, "135": 0, "136": 0, "137": 0, "138": 0, "139": 0, "140": 0, "141": 0, "142": 0, "143": 0, "144": 0, "145": 0, "146": 0, "147": 0, "148": 0, "149": 0, "150": 0, "151": 0, "152": 0, "153": 0, "154": 0, "155": 0, "156": 0, "157": 0, "158": 0, "159": 0, "160": 0, "161": 0, "162": 0, "163": 0, "164": 0, "165": 0, "166": 0, "167": 0, "168": 0, "169": 0, "170": 0, "171": 0, "172": 0, "173": 0, "174": 0, "175": 0, "176": 0, "177": 0, "178": 0, "179": 0, "180": 0, "181": 0, "182": 0, "183": 0, "184": 0, "185": 0, "186": 0, "187": 0, "188": 0, "189": 0, "190": 0, "191": 0, "192": 0, "193": 0, "194": 0, "195": 0, "196": 0, "197": 0, "198": 0, "199": 0, "200": 0, "201": 0, "202": 0, "203": 0, "204": 0, "205": 0, "206": 0, "207": 0, "208": 0, "209": 0, "210": 0, "211": 0, "212": 0, "213": 0, "214": 0, "215": 0, "216": 0, "217": 0, "218": 0, "219": 0, "220": 0, "221": 0, "222": 0, "223": 0, "224": 0, "225": 0, "226": 0, "227": 0, "228": 0, "229": 0, "230": 0, "231": 0, "232": 0, "233": 0, "234": 0, "235": 0, "236": 0, "237": 0, "238": 0, "239": 0, "240": 0, "241": 0, "242": 0, "243": 0, "244": 0, "245": 0, "246": 0, "247": 0, "248": 0, "249": 0, "250": 0, "251": 0, "252": 0, "253": 0, "254": 0, "255": 0, "256": 0, "257": 0, "258": 0, "259": 0, "260": 0, "261": 0, "262": 0, "263": 0, "264": 0, "265": 0, "266": 0, "267": 0, "268": 0, "269": 1, "270": 0, "271": 0, "272": 0, "273": 0, "274": 0, "275": 0, "276": 0, "277": 0, "278": 0, "279": 0, "280": 0, "281": 0, "282": 0, "283": 0, "284": 0, "285": 0, "286": 0, "287": 0, "288": 0, "289": 0, "290": 0, "291": 0, "292": 0, "293": 0, "294": 0, "295": 0, "296": 0, "297": 0, "298": 0, "299": 0, "300": 0, "301": 0, "302": 0, "303": 0, "304": 0, "305": 0, "306": 0, "307": 0, "308": 0, "309": 0, "310": 0, "311": 0, "312": 0}
\ No newline at end of file
diff --git a/django/university/views.py b/django/university/views.py
index fc9ba9d..db3eba3 100644
--- a/django/university/views.py
+++ b/django/university/views.py
@@ -19,7 +19,7 @@
     Initialization of statistics.
 """
 
-DEFAULT_YEAR = 2022
+DEFAULT_YEAR = 2023
 statistics(Course.objects.filter(year=DEFAULT_YEAR).values(), DEFAULT_YEAR)
 
 def get_field(value):
diff --git a/docker-compose.yaml b/docker-compose.yaml
index b3d8239..9315c2b 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -12,8 +12,8 @@ services:
       - 3306:3306
     ulimits:
       nofile:
-        soft: "262144"
-        hard: "262144"
+        soft: 262144
+        hard: 262144
 
   phpmyadmin:
     image: phpmyadmin:5.1.1-apache