diff --git a/changelog/8218-bump-celery.yaml b/changelog/8218-bump-celery.yaml
new file mode 100644
index 0000000000..2dff4898cf
--- /dev/null
+++ b/changelog/8218-bump-celery.yaml
@@ -0,0 +1,4 @@
+type: Changed
+description: Bumped celery from 5.5.3 to 5.6.3
+pr: 8218
+labels: []
diff --git a/pyproject.toml b/pyproject.toml
index f0dded81ff..58b5700d22 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ dependencies = [
     "attrs~=25.4.0",
     "boto3==1.41.2",
     "celery-redis-cluster~=0.2.3",
-    "celery==5.5.3",
+    "celery==5.6.3",
     "certifi==2024.8.30",
     "click-repl~=0.3.0",
     "click==8.1.8",
diff --git a/uv.lock b/uv.lock
index 0b405962dc..3c0ca1119f 100644
--- a/uv.lock
+++ b/uv.lock
@@ -392,7 +392,7 @@ wheels = [
 
 [[package]]
 name = "celery"
-version = "5.5.3"
+version = "5.6.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "billiard" },
@@ -402,11 +402,12 @@ dependencies = [
     { name = "click-repl" },
     { name = "kombu" },
     { name = "python-dateutil" },
+    { name = "tzlocal" },
     { name = "vine" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/bb/7d/6c289f407d219ba36d8b384b42489ebdd0c84ce9c413875a8aae0c85f35b/celery-5.5.3.tar.gz", hash = "sha256:6c972ae7968c2b5281227f01c3a3f984037d21c5129d07bf3550cc2afc6b10a5", size = 1667144, upload-time = "2025-06-01T11:08:12.563Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/e8/b4/a1233943ab5c8ea05fb877a88a0a0622bf47444b99e4991a8045ac37ea1d/celery-5.6.3.tar.gz", hash = "sha256:177006bd2054b882e9f01be59abd8529e88879ef50d7918a7050c5a9f4e12912", size = 1742243, upload-time = "2026-03-26T12:14:51.76Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/c9/af/0dcccc7fdcdf170f9a1585e5e96b6fb0ba1749ef6be8c89a6202284759bd/celery-5.5.3-py3-none-any.whl", hash = "sha256:0b5761a07057acee94694464ca482416b959568904c9dfa41ce8413a7d65d525", size = 438775, upload-time = "2025-06-01T11:08:09.94Z" },
+    { url = "https://files.pythonhosted.org/packages/cf/c9/6eccdda96e098f7ae843162db2d3c149c6931a24fda69fe4ab84d0027eb5/celery-5.6.3-py3-none-any.whl", hash = "sha256:0808f42f80909c4d5833202360ffafb2a4f83f4d8e23e1285d926610e9a7afa6", size = 451235, upload-time = "2026-03-26T12:14:49.491Z" },
 ]
 
 [[package]]
@@ -1063,7 +1064,7 @@ requires-dist = [
     { name = "attrs", specifier = "~=25.4.0" },
     { name = "boto3", specifier = "==1.41.2" },
     { name = "cachecontrol", specifier = "~=0.14.4" },
-    { name = "celery", specifier = "==5.5.3" },
+    { name = "celery", specifier = "==5.6.3" },
     { name = "celery-redis-cluster", specifier = "~=0.2.3" },
     { name = "certifi", specifier = "==2024.8.30" },
     { name = "cffi", specifier = "~=2.0.0" },
@@ -2148,7 +2149,7 @@ wheels = [
 
 [[package]]
 name = "kombu"
-version = "5.5.4"
+version = "5.6.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "amqp" },
@@ -2156,9 +2157,9 @@ dependencies = [
     { name = "tzdata" },
     { name = "vine" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/0f/d3/5ff936d8319ac86b9c409f1501b07c426e6ad41966fedace9ef1b966e23f/kombu-5.5.4.tar.gz", hash = "sha256:886600168275ebeada93b888e831352fe578168342f0d1d5833d88ba0d847363", size = 461992, upload-time = "2025-06-01T10:19:22.281Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/b6/a5/607e533ed6c83ae1a696969b8e1c137dfebd5759a2e9682e26ff1b97740b/kombu-5.6.2.tar.gz", hash = "sha256:8060497058066c6f5aed7c26d7cd0d3b574990b09de842a8c5aaed0b92cc5a55", size = 472594, upload-time = "2025-12-29T20:30:07.779Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/ef/70/a07dcf4f62598c8ad579df241af55ced65bed76e42e45d3c368a6d82dbc1/kombu-5.5.4-py3-none-any.whl", hash = "sha256:a12ed0557c238897d8e518f1d1fdf84bd1516c5e305af2dacd85c2015115feb8", size = 210034, upload-time = "2025-06-01T10:19:20.436Z" },
+    { url = "https://files.pythonhosted.org/packages/fb/0f/834427d8c03ff1d7e867d3db3d176470c64871753252b21b4f4897d1fa45/kombu-5.6.2-py3-none-any.whl", hash = "sha256:efcfc559da324d41d61ca311b0c64965ea35b4c55cc04ee36e55386145dace93", size = 214219, upload-time = "2025-12-29T20:30:05.74Z" },
 ]
 
 [[package]]