diff --git a/requirements/base.txt b/requirements/base.txt
index cdbdc7732b26cd344d396397f0bb88454d107176..80ba7e7f423252438733212c5397146fa473acc2 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -4,10 +4,11 @@
 #
 #    pip-compile base.in
 #
+
+amqp==5.1.0
+    # via kombu
 anyascii==0.3.0
     # via wagtail
-appnope==0.1.2
-    # via ipython
 arrow==0.14.7
     # via
     #   -r base.in
@@ -22,10 +23,14 @@ beautifulsoup4==4.9.3
     # via
     #   -r base.in
     #   wagtail
+billiard==3.6.4.0
+    # via celery
 bleach==4.1.0
     # via -r base.in
 brotli==1.0.9
     # via fonttools
+celery==5.2.3
+    # via -r base.in
 certifi==2021.10.8
     # via
     #   requests
@@ -36,6 +41,18 @@ cffi==1.15.0
     #   weasyprint
 charset-normalizer==2.0.12
     # via requests
+click==8.1.2
+    # via
+    #   celery
+    #   click-didyoumean
+    #   click-plugins
+    #   click-repl
+click-didyoumean==0.3.0
+    # via celery
+click-plugins==1.1.1
+    # via celery
+click-repl==0.2.0
+    # via celery
 cryptography==36.0.1
     # via
     #   josepy
@@ -106,6 +123,8 @@ jedi==0.18.1
     # via ipython
 josepy==1.13.0
     # via mozilla-django-oidc
+kombu==5.2.4
+    # via celery
 l18n==2021.3
     # via wagtail
 markdown==3.3.6
@@ -138,7 +157,9 @@ pillow==9.0.1
 pirates==0.6.0
     # via -r base.in
 prompt-toolkit==3.0.28
-    # via ipython
+    # via
+    #   click-repl
+    #   ipython
 psycopg2-binary==2.9.3
     # via -r base.in
 ptyprocess==0.7.0
@@ -165,6 +186,7 @@ python-dateutil==2.8.2
     #   ics
 pytz==2021.3
     # via
+    #   celery
     #   django-modelcluster
     #   djangorestframework
     #   l18n
@@ -183,6 +205,7 @@ six==1.16.0
     # via
     #   asttokens
     #   bleach
+    #   click-repl
     #   html5lib
     #   ics
     #   l18n
@@ -211,6 +234,11 @@ urllib3==1.26.8
     # via
     #   requests
     #   sentry-sdk
+vine==5.0.0
+    # via
+    #   amqp
+    #   celery
+    #   kombu
 wagtail==2.16.1
     # via
     #   -r base.in