diff --git a/lambda/pyproject.toml b/lambda/pyproject.toml
index acc034a6..f75433e3 100644
--- a/lambda/pyproject.toml
+++ b/lambda/pyproject.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 requires-python = ">=3.14"
 dependencies = [
     "aws-lambda-powertools==3.26.0",
-    "boto3==1.42.73",
+    "boto3==1.42.78",
     "cryptography==46.0.6",
     "dataclasses-json==0.6.7",
     "mohawk==1.1.0",
@@ -23,7 +23,7 @@ dev = [
     "flake8==7.3.0",
     "Flake8-pyproject==1.2.4",
     "mypy==1.19.1",
-    "types-boto3==1.42.73",
+    "types-boto3==1.42.78",
     "hypothesis>=6.0.0",
     "types-requests==2.33.0.20260327"
 ]
diff --git a/lambda/uv.lock b/lambda/uv.lock
index 360d428b..9e331149 100644
--- a/lambda/uv.lock
+++ b/lambda/uv.lock
@@ -39,30 +39,30 @@ wheels = [
 
 [[package]]
 name = "boto3"
-version = "1.42.73"
+version = "1.42.78"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "botocore" },
     { name = "jmespath" },
     { name = "s3transfer" },
 ]
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+sdist = { url = "https://files.pythonhosted.org/packages/a8/2b/ebdad075934cf6bb78bf81fe31d83339bcd804ad6c856f7341376cbc88b6/boto3-1.42.78.tar.gz", hash = "sha256:cef2ebdb9be5c0e96822f8d3941ac4b816c90a5737a7ffb901d664c808964b63", size = 112789, upload-time = "2026-03-27T19:28:07.58Z" }
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+    { url = "https://files.pythonhosted.org/packages/57/bb/1f6dade1f1e86858bef7bd332bc8106c445f2dbabec7b32ab5d7d118c9b6/boto3-1.42.78-py3-none-any.whl", hash = "sha256:480a34a077484a5ca60124dfd150ba3ea6517fc89963a679e45b30c6db614d26", size = 140556, upload-time = "2026-03-27T19:28:06.125Z" },
 ]
 
 [[package]]
 name = "botocore"
-version = "1.42.73"
+version = "1.42.78"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jmespath" },
     { name = "python-dateutil" },
     { name = "urllib3" },
 ]
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+sdist = { url = "https://files.pythonhosted.org/packages/67/8e/cdb34c8ca71216d214e049ada2148ee08bcda12b1ac72af3a720dea300ff/botocore-1.42.78.tar.gz", hash = "sha256:61cbd49728e23f68cfd945406ab40044d49abed143362f7ffa4a4f4bd4311791", size = 15023592, upload-time = "2026-03-27T19:27:57.122Z" }
 wheels = [
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+    { url = "https://files.pythonhosted.org/packages/54/72/94bba1a375d45c685b00e051b56142359547837086a83861d76f6aec26f4/botocore-1.42.78-py3-none-any.whl", hash = "sha256:038ab63c7f898e8b5db58cb6a45e4da56c31dd984e7e995839a3540c735564ea", size = 14701729, upload-time = "2026-03-27T19:27:54.05Z" },
 ]
 
 [[package]]
@@ -311,7 +311,7 @@ dev = [
 [package.metadata]
 requires-dist = [
     { name = "aws-lambda-powertools", specifier = "==3.26.0" },
-    { name = "boto3", specifier = "==1.42.73" },
+    { name = "boto3", specifier = "==1.42.78" },
     { name = "cryptography", specifier = "==46.0.6" },
     { name = "dataclasses-json", specifier = "==0.6.7" },
     { name = "mohawk", specifier = "==1.1.0" },
@@ -330,7 +330,7 @@ dev = [
     { name = "pytest", specifier = "==9.0.2" },
     { name = "pytest-cov", specifier = "==7.1.0" },
     { name = "pytest-xdist", specifier = "==3.8.0" },
-    { name = "types-boto3", specifier = "==1.42.73" },
+    { name = "types-boto3", specifier = "==1.42.78" },
     { name = "types-requests", specifier = "==2.33.0.20260327" },
 ]
 
@@ -715,15 +715,15 @@ wheels = [
 
 [[package]]
 name = "types-boto3"
-version = "1.42.73"
+version = "1.42.78"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "botocore-stubs" },
     { name = "types-s3transfer" },
 ]
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+sdist = { url = "https://files.pythonhosted.org/packages/89/ca/d6bf0c7816f7d9d38196c60579172ffcf68b07123e3968f7468c218ae316/types_boto3-1.42.78.tar.gz", hash = "sha256:132e0dc52a718f858f8a79436422848c4efe1c89e87d748784aecef3d1f69965", size = 102016, upload-time = "2026-03-27T19:35:45.324Z" }
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+    { url = "https://files.pythonhosted.org/packages/35/68/52ff5bab810f89ed873abad375c3aa98161f79042ef5007bde7cc7bee3f3/types_boto3-1.42.78-py3-none-any.whl", hash = "sha256:fe1576d3a518422534ff8372cf0fcaf9856eec3fa096d31a72d2d6ca62e0b956", size = 70062, upload-time = "2026-03-27T19:35:37.828Z" },
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 [[package]]