diff --git a/lib/adapter/question.py b/lib/adapter/question.py
index 8153a4c9..27f63a38 100644
--- a/lib/adapter/question.py
+++ b/lib/adapter/question.py
@@ -12,9 +12,6 @@
 import re
 from subprocess import Popen, PIPE
 
-from polyglot.detect import Detector
-from polyglot.detect.base import UnknownLanguage
-
 from config import CONFIG
 from languages_data import SO_NAME
 from .upstream import UpstreamAdapter
@@ -83,40 +80,7 @@ def _get_page(self, topic, request_options=None):
         topic_words = topic.split()
 
         topic = " ".join(topic_words)
-
-        lang = "en"
-        try:
-            query_text = topic  # " ".join(topic)
-            query_text = re.sub("^[^/]*/+", "", query_text.rstrip("/"))
-            query_text = re.sub("/[0-9]+$", "", query_text)
-            query_text = re.sub("/[0-9]+$", "", query_text)
-            detector = Detector(query_text)
-            supposed_lang = detector.languages[0].code
-            if len(topic_words) > 2 or supposed_lang in [
-                "az",
-                "ru",
-                "uk",
-                "de",
-                "fr",
-                "es",
-                "it",
-                "nl",
-            ]:
-                lang = supposed_lang
-            if supposed_lang.startswith("zh_") or supposed_lang == "zh":
-                lang = "zh"
-            elif supposed_lang.startswith("pt_"):
-                lang = "pt"
-            if supposed_lang in ["ja", "ko"]:
-                lang = supposed_lang
-
-        except UnknownLanguage:
-            print("Unknown language (%s)" % query_text)
-
-        if lang != "en":
-            topic = ["--human-language", lang, topic]
-        else:
-            topic = [topic]
+        topic = [topic]
 
         cmd = [CONFIG["path.internal.bin.upstream"]] + topic
         proc = Popen(cmd, stdin=open(os.devnull, "r"), stdout=PIPE, stderr=PIPE)
diff --git a/requirements.txt b/requirements.txt
index ca907c94..b816d872 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,11 +7,7 @@ dateutils
 fuzzywuzzy
 redis
 colored<1.4.3
-langdetect
 cffi
-polyglot
-PyICU
-pycld2
 colorama
 pyyaml
 python-Levenshtein