diff --git a/poetry.lock b/poetry.lock
index ef542b9f6..b63c8dead 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -2113,13 +2113,13 @@ tests = ["cython", "littleutils", "pygments", "pytest", "typeguard"]
 
 [[package]]
 name = "tenacity"
-version = "8.5.0"
+version = "9.0.0"
 description = "Retry code until it succeeds"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "tenacity-8.5.0-py3-none-any.whl", hash = "sha256:b594c2a5945830c267ce6b79a166228323ed52718f30302c1359836112346687"},
-    {file = "tenacity-8.5.0.tar.gz", hash = "sha256:8bc6c0c8a09b31e6cad13c47afbed1a567518250a9a171418582ed8d9c20ca78"},
+    {file = "tenacity-9.0.0-py3-none-any.whl", hash = "sha256:93de0c98785b27fcf659856aa9f54bfbd399e29969b0621bc7f762bd441b4539"},
+    {file = "tenacity-9.0.0.tar.gz", hash = "sha256:807f37ca97d62aa361264d497b0e31e92b8027044942bfa756160d908320d73b"},
 ]
 
 [package.extras]
@@ -2411,4 +2411,4 @@ test = ["big-O", "importlib-resources", "jaraco.functools", "jaraco.itertools",
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "e340c0b1b4cb64a7b38834f2642a84ddd2ad2ea700c34b248aab75c63d9ca712"
+content-hash = "19d51071abab6abd49796ac852b75a1ec01fe326038fc082325b1b38ad087987"
diff --git a/pyproject.toml b/pyproject.toml
index b418592d5..459f546ed 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ python = "^3.10"
 # breaking change in ops 2.10.0: https://github.com/canonical/operator/pull/1091#issuecomment-1888644075
 ops = "^2.9.0, <2.10"
 lightkube = "^0.15.3"
-tenacity = "^8.5.0"
+tenacity = "^9.0.0"
 jinja2 = "^3.1.4"
 poetry-core = "^1.9.0"
 requests = "^2.32.3"
@@ -56,7 +56,7 @@ pytest-operator-groups = {git = "https://github.com/canonical/data-platform-work
 juju = "^3.5.2.0"
 mysql-connector-python = "~8.0.33"
 pyyaml = "^6.0.1"
-tenacity = "^8.5.0"
+tenacity = "^9.0.0"
 allure-pytest = "^2.13.5"
 allure-pytest-collection-report = {git = "https://github.com/canonical/data-platform-workflows", tag = "v21.0.0", subdirectory = "python/pytest_plugins/allure_pytest_collection_report"}