diff --git a/requirements.txt b/requirements.txt
index a7d8132b4..5e875fe6c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ babel==2.7.0              # via flask-babel
 backoff==1.8.0
 billiard==3.6.0.0         # via celery
 bleach==3.1.0
-celery==4.3.0
+celery==5.2.2
 cffi==1.12.3              # via cryptography
 click==6.7
 colorama==0.4.1
diff --git a/setup.py b/setup.py
index f7ac4716f..50f6703ed 100644
--- a/setup.py
+++ b/setup.py
@@ -71,7 +71,7 @@ def get_git_sha():
     install_requires=[
         "backoff>=1.8.0",
         "bleach>=3.0.2, <4.0.0",
-        "celery>=4.3.0, <5.0.0",
+        "celery>=4.3.0, <6.0.0",
         "click>=6.0, <7.0.0",  # `click`>=7 forces "-" instead of "_"
         "colorama",
         "contextlib2",