diff --git a/devscripts/ExtractCryptoYT.sh b/devscripts/ExtractCryptoYT.sh
index f7caf2e18..2b41da995 100755
--- a/devscripts/ExtractCryptoYT.sh
+++ b/devscripts/ExtractCryptoYT.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 data="$(curl -s "https://www.youtube.com/s/player/$1/player_ias.vflset/en_GB/base.js")"
-func="$(grep -P '[a-z]\=a\.split.*a\.join' <<< "$data")"
+func="$(grep -P '[a-z]\=a\.split\([\"'"'"']{2}.*a\.join' <<< "$data")"
 echo "full extracted function: $func"
 
 obfuscatedName="$(grep -Poh '\(""\);[A-Za-z]+' <<< "$func" | sed -s 's/("");//')"
diff --git a/haruhi_dl/extractor/youtube.py b/haruhi_dl/extractor/youtube.py
index 40d0de8f1..0d21c8e40 100644
--- a/haruhi_dl/extractor/youtube.py
+++ b/haruhi_dl/extractor/youtube.py
@@ -1020,14 +1020,12 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
 
     def _decrypt_signature_protected(self, s):
         a = list(s)
-        a = a[3:]
-        a = self.mess(a, 63)
-        a = self.mess(a, 20)
-        a = a[1:]
+        a = self.mess(a, 49)
+        a = self.mess(a, 26)
         a.reverse()
-        a = self.mess(a, 44)
-        a = a[1:]
+        a = self.mess(a, 62)
         a.reverse()
+        a = a[2:]
         return "".join(a)
 
     def _full_signature_handling(self, sig, player_url, video_id):
diff --git a/haruhi_dl/version.py b/haruhi_dl/version.py
index feedce51d..b33dfb273 100644
--- a/haruhi_dl/version.py
+++ b/haruhi_dl/version.py
@@ -1,6 +1,6 @@
 from __future__ import unicode_literals
 
-__version__ = '2021.06.01'
+__version__ = '2021.06.20'
 
 if __name__ == '__main__':
     print(__version__)