diff --git a/poetry.lock b/poetry.lock
index 4ff32a9f6..ed00b6ced 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -188,20 +188,20 @@ uvloop = ["uvloop (>=0.15.2)"]
 
 [[package]]
 name = "boto3"
-version = "1.34.67"
+version = "1.39.11"
 description = "The AWS SDK for Python"
 optional = false
-python-versions = ">=3.8"
+python-versions = ">=3.9"
 groups = ["dev"]
 files = [
-    {file = "boto3-1.34.67-py3-none-any.whl", hash = "sha256:473febdf2606cf36f14c470dc3ff1b986efac15f69e37eb0fd728d42749065dd"},
-    {file = "boto3-1.34.67.tar.gz", hash = "sha256:950161d438ae1bf31374f04175e5f2624a5de8109674ff80f4de5d962313072a"},
+    {file = "boto3-1.39.11-py3-none-any.whl", hash = "sha256:af8f1dad35eceff7658fab43b39b0f55892b6e3dd12308733521cc24dd2c9a02"},
+    {file = "boto3-1.39.11.tar.gz", hash = "sha256:3027edf20642fe1d5f9dc50a420d0fe2733073ed6a9f0f047b60fe08c3682132"},
 ]
 
 [package.dependencies]
-botocore = ">=1.34.67,<1.35.0"
+botocore = ">=1.39.11,<1.40.0"
 jmespath = ">=0.7.1,<2.0.0"
-s3transfer = ">=0.10.0,<0.11.0"
+s3transfer = ">=0.13.0,<0.14.0"
 
 [package.extras]
 crt = ["botocore[crt] (>=1.21.0,<2.0a0)"]
@@ -614,14 +614,14 @@ xray = ["mypy-boto3-xray (>=1.34.0,<1.35.0)"]
 
 [[package]]
 name = "botocore"
-version = "1.34.67"
+version = "1.39.11"
 description = "Low-level, data-driven core of boto 3."
 optional = false
-python-versions = ">=3.8"
+python-versions = ">=3.9"
 groups = ["dev"]
 files = [
-    {file = "botocore-1.34.67-py3-none-any.whl", hash = "sha256:56002d7c046ec134811dd079469692ab82919c9840ea4e1c1c373a1d228e37ae"},
-    {file = "botocore-1.34.67.tar.gz", hash = "sha256:fc094c055a6ac151820a4d8e28f7b30d03e02695ce180527520a5e219b14e8a1"},
+    {file = "botocore-1.39.11-py3-none-any.whl", hash = "sha256:1545352931a8a186f3e977b1e1a4542d7d434796e274c3c62efd0210b5ea76dc"},
+    {file = "botocore-1.39.11.tar.gz", hash = "sha256:953b12909d6799350e346ab038e55b6efe622c616f80aef74d7a6683ffdd972c"},
 ]
 
 [package.dependencies]
@@ -630,7 +630,7 @@ python-dateutil = ">=2.1,<3.0.0"
 urllib3 = {version = ">=1.25.4,<2.2.0 || >2.2.0,<3", markers = "python_version >= \"3.10\""}
 
 [package.extras]
-crt = ["awscrt (==0.19.19)"]
+crt = ["awscrt (==0.23.8)"]
 
 [[package]]
 name = "botocore-stubs"
@@ -2549,21 +2549,21 @@ files = [
 
 [[package]]
 name = "s3transfer"
-version = "0.10.1"
+version = "0.13.1"
 description = "An Amazon S3 Transfer Manager"
 optional = false
-python-versions = ">= 3.8"
+python-versions = ">=3.9"
 groups = ["dev"]
 files = [
-    {file = "s3transfer-0.10.1-py3-none-any.whl", hash = "sha256:ceb252b11bcf87080fb7850a224fb6e05c8a776bab8f2b64b7f25b969464839d"},
-    {file = "s3transfer-0.10.1.tar.gz", hash = "sha256:5683916b4c724f799e600f41dd9e10a9ff19871bf87623cc8f491cb4f5fa0a19"},
+    {file = "s3transfer-0.13.1-py3-none-any.whl", hash = "sha256:a981aa7429be23fe6dfc13e80e4020057cbab622b08c0315288758d67cabc724"},
+    {file = "s3transfer-0.13.1.tar.gz", hash = "sha256:c3fdba22ba1bd367922f27ec8032d6a1cf5f10c934fb5d68cf60fd5a23d936cf"},
 ]
 
 [package.dependencies]
-botocore = ">=1.33.2,<2.0a.0"
+botocore = ">=1.37.4,<2.0a.0"
 
 [package.extras]
-crt = ["botocore[crt] (>=1.33.2,<2.0a.0)"]
+crt = ["botocore[crt] (>=1.37.4,<2.0a.0)"]
 
 [[package]]
 name = "setuptools"
@@ -2733,4 +2733,4 @@ files = [
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.12"
-content-hash = "037c081798dee74c81e8d35c48b2bf5748b141602f9712833d2daf1ecbd5e142"
+content-hash = "82cd83b83d14bef0efdba11a5fb516ad11ba77b2a7b2824b6987d0521ec6c950"
diff --git a/pyproject.toml b/pyproject.toml
index 565bdf7bd..5e92aa172 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ nrlf-converter = {url = "https://github.com/NHSDigital/nrlf-converter/releases/d
 pytest = "^8.1.1"
 pytest-mock = "^3.12.0"
 pytest-cov = "^5.0.0"
-boto3 = "^1.34.60"
+boto3 = "^1.39.11"
 sh = "^2.0.6"
 moto = {extras = ["dynamodb", "s3"], version = "^5.0.5"}
 behave = "^1.2.6"