diff --git a/poetry.lock b/poetry.lock
index 6e2c9ad5..7455be24 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -157,17 +157,17 @@ files = [
 
 [[package]]
 name = "boto3"
-version = "1.28.3"
+version = "1.28.21"
 description = "The AWS SDK for Python"
 optional = true
 python-versions = ">= 3.7"
 files = [
-    {file = "boto3-1.28.3-py3-none-any.whl", hash = "sha256:34f07b3fc2503240c0f58114cf3afea91295c7996d084991b78a278a56157c48"},
-    {file = "boto3-1.28.3.tar.gz", hash = "sha256:610369a7f984b58973c097ea649ec81976c04565d39a2d6d3edc280d23b0cb87"},
+    {file = "boto3-1.28.21-py3-none-any.whl", hash = "sha256:28e1ea098e43e764d990b4466e377c322b5d57829e2eb1395eca52d4209a6c11"},
+    {file = "boto3-1.28.21.tar.gz", hash = "sha256:0ad6932b2469f4fa4e63f4baf8508ccc1b1bc215b9c835df73505aa85210fc27"},
 ]
 
 [package.dependencies]
-botocore = ">=1.31.3,<1.32.0"
+botocore = ">=1.31.21,<1.32.0"
 jmespath = ">=0.7.1,<2.0.0"
 s3transfer = ">=0.6.0,<0.7.0"
 
@@ -176,13 +176,13 @@ crt = ["botocore[crt] (>=1.21.0,<2.0a0)"]
 
 [[package]]
 name = "botocore"
-version = "1.31.3"
+version = "1.31.21"
 description = "Low-level, data-driven core of boto 3."
 optional = true
 python-versions = ">= 3.7"
 files = [
-    {file = "botocore-1.31.3-py3-none-any.whl", hash = "sha256:2aa27c75e62bfcf7900cb85283228fcb7df0fa1bdc2ae76dcee90788dd444934"},
-    {file = "botocore-1.31.3.tar.gz", hash = "sha256:744ce853cadc7ae87ba42ef6828194ddec97d606dd4d08b4dfe3d96d5001eb0c"},
+    {file = "botocore-1.31.21-py3-none-any.whl", hash = "sha256:c20a5c46eaf49b18b76fdfaec5583320e18abd551b1bc3cd7b1e718372675e21"},
+    {file = "botocore-1.31.21.tar.gz", hash = "sha256:9a13736b16aea3f16829b00edfb2c656fee72ecbfe5eb396cc2f8632e31fd524"},
 ]
 
 [package.dependencies]
@@ -191,7 +191,7 @@ python-dateutil = ">=2.1,<3.0.0"
 urllib3 = ">=1.25.4,<1.27"
 
 [package.extras]
-crt = ["awscrt (==0.16.9)"]
+crt = ["awscrt (==0.16.26)"]
 
 [[package]]
 name = "cachetools"
@@ -2005,4 +2005,4 @@ duplicity = ["PyDrive", "PyDrive2", "b2", "b2sdk", "boto", "boto3", "dropbox", "
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8"
-content-hash = "15ed09ce4d2d54d8ac13ff11a417a1baa7a9ae3ed803ca2da9bba4ca3e85f0c5"
+content-hash = "0b9df49ed5d0b35e7334c5724bbe13ade668296fb27d8d526d770304447fec1c"
diff --git a/pyproject.toml b/pyproject.toml
index 559caa7e..aab88801 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ python = "^3.8"
 b2 = {version = "^3.4.0", optional = true}
 b2sdk = {version = "1.16.0", optional = true}
 boto = {version = "^2.49.0", optional = true}
-boto3 = {version = "^1.28.3", optional = true}
+boto3 = {version = "^1.28.21", optional = true}
 gdata = {version = "^2.0.18", optional = true}
 jottalib = {version = "^0.5.1", optional = true}
 paramiko = {version = "^3.2.0", optional = true}