diff --git a/requirements.txt b/requirements.txt
index e1b76a4a0..7986f92fe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ arrow==0.17.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2,
 asgiref==3.3.1; python_version >= '3.5'
 async-timeout==3.0.1; python_full_version >= '3.5.3'
 attrs==20.3.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
-autobahn==20.12.3; python_version >= '3.6'
+autobahn==21.1.1; python_version >= '3.6'
 automat==20.2.0
 blessed==1.17.12
 certifi==2020.12.5
@@ -22,6 +22,7 @@ channels==3.0.3
 chardet==4.0.0; python_version >= '3.1'
 click==7.1.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 coloredlogs==15.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
+concurrent-log-handler==0.9.19
 constantly==15.1.0
 cryptography==3.3.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'
 daphne==3.0.1; python_version >= '3.6'
@@ -44,7 +45,6 @@ hyperlink==21.0.0
 idna==2.10; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 imap-tools==0.37.0
 img2pdf==0.4.0
-importlib-metadata==3.4.0; python_version < '3.8'
 incremental==17.5.0
 inotify-simple==1.3.5; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 inotifyrecursive==0.3.5
@@ -52,7 +52,7 @@ joblib==1.0.0; python_version >= '3.6'
 langdetect==1.0.8
 lxml==4.6.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 msgpack==1.0.2
-numpy==1.19.5; python_version >= '3.6'
+numpy==1.19.5
 ocrmypdf==11.6.0
 pathvalidate==2.3.2
 pdfminer.six==20201018; python_version >= '3.4'
@@ -60,6 +60,7 @@ pdftotext==2.1.5
 pikepdf==2.5.2
 pillow==8.1.0
 pluggy==0.13.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+portalocker==2.2.1; python_version >= '3'
 psycopg2-binary==2.8.6
 pyasn1-modules==0.2.8
 pyasn1==0.4.8
@@ -88,7 +89,6 @@ tika==1.24
 tqdm==4.56.0
 twisted[tls]==20.3.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 txaio==20.12.1; python_version >= '3.6'
-typing-extensions==3.7.4.3; python_version < '3.8'
 tzlocal==2.1
 urllib3==1.26.3; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'
 uvicorn[standard]==0.13.3
@@ -99,5 +99,4 @@ wcwidth==0.2.5
 websockets==8.1
 whitenoise==5.2.0
 whoosh==2.7.4
-zipp==3.4.0; python_version >= '3.6'
 zope.interface==5.2.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'