diff --git a/poetry.lock b/poetry.lock
index ac972d8..af1e6c1 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -62,7 +62,7 @@ test = ["pytest (>=6.0)", "pytest-cov", "pytest-subtests", "pytest-xdist", "pret
 
 [[package]]
 name = "defusedxml"
-version = "0.7.0"
+version = "0.7.1"
 description = "XML bomb protection for Python stdlib modules"
 category = "main"
 optional = false
@@ -143,7 +143,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "importlib-metadata"
-version = "3.7.0"
+version = "3.7.2"
 description = "Read metadata from Python packages"
 category = "main"
 optional = false
@@ -227,7 +227,7 @@ python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
 
 [[package]]
 name = "mitama"
-version = "4.5.8"
+version = "4.5.20"
 description = ""
 category = "main"
 optional = false
@@ -248,6 +248,7 @@ python-magic = ">=0.4.22,<0.5.0"
 pywebpush = ">=1.11.0,<2.0.0"
 SQLAlchemy = ">=1.3.23,<2.0.0"
 tzlocal = ">=2.1,<3.0"
+uWSGI = ">=2.0.19,<3.0.0"
 watchdog = ">=2.0.1,<3.0.0"
 
 [[package]]
@@ -483,6 +484,14 @@ brotli = ["brotlipy (>=0.6.0)"]
 secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
 socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
+[[package]]
+name = "uwsgi"
+version = "2.0.19.1"
+description = "The uWSGI server"
+category = "main"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "watchdog"
 version = "2.0.2"
@@ -550,7 +559,7 @@ testing = ["coverage (>=5.0.3)", "zope.event", "zope.testing"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.6"
-content-hash = "4ada52046e7ccd2c708465c02a27ef41b0ed525343671d1b49579d540d2a3870"
+content-hash = "ee755ed6cdddb37be43871d04776174db59421898346168e09f2bd47851525d0"
 
 [metadata.files]
 bcrypt = [
@@ -619,8 +628,8 @@ cryptography = [
     {file = "cryptography-3.4.6.tar.gz", hash = "sha256:2d32223e5b0ee02943f32b19245b61a62db83a882f0e76cc564e1cec60d48f87"},
 ]
 defusedxml = [
-    {file = "defusedxml-0.7.0-py2.py3-none-any.whl", hash = "sha256:a290cad10346ed366c8a0133d868eaf6585ec6afdd0c511286cdb11f5fc3d285"},
-    {file = "defusedxml-0.7.0.tar.gz", hash = "sha256:86b15d9e3c639de79f4cb38aeffea3281f62aff78dde7d798e1352c63bfa6ea0"},
+    {file = "defusedxml-0.7.1-py2.py3-none-any.whl", hash = "sha256:a352e7e428770286cc899e2542b6cdaedb2b4953ff269a210103ec58f6198a61"},
+    {file = "defusedxml-0.7.1.tar.gz", hash = "sha256:1bb3032db185915b62d7c6209c5a8792be6a32ab2fedacc84e01b52c51aa3e69"},
 ]
 elementpath = [
     {file = "elementpath-2.2.0-py3-none-any.whl", hash = "sha256:eae259ab72a643c16768268895a596e05a41a697da2723614f9588e5fed9b516"},
@@ -713,8 +722,8 @@ idna = [
     {file = "idna-2.10.tar.gz", hash = "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6"},
 ]
 importlib-metadata = [
-    {file = "importlib_metadata-3.7.0-py3-none-any.whl", hash = "sha256:c6af5dbf1126cd959c4a8d8efd61d4d3c83bddb0459a17e554284a077574b614"},
-    {file = "importlib_metadata-3.7.0.tar.gz", hash = "sha256:24499ffde1b80be08284100393955842be4a59c7c16bbf2738aad0e464a8e0aa"},
+    {file = "importlib_metadata-3.7.2-py3-none-any.whl", hash = "sha256:407d13f55dc6f2a844e62325d18ad7019a436c4bfcaee34cda35f2be6e7c3e34"},
+    {file = "importlib_metadata-3.7.2.tar.gz", hash = "sha256:18d5ff601069f98d5d605b6a4b50c18a34811d655c55548adc833e687289acde"},
 ]
 importlib-resources = [
     {file = "importlib_resources-5.1.2-py3-none-any.whl", hash = "sha256:ebab3efe74d83b04d6bf5cd9a17f0c5c93e60fb60f30c90f56265fce4682a469"},
@@ -787,8 +796,7 @@ markupsafe = [
     {file = "MarkupSafe-1.1.1.tar.gz", hash = "sha256:29872e92839765e546828bb7754a68c418d927cd064fd4708fab9fe9c8bb116b"},
 ]
 mitama = [
-    {file = "mitama-4.5.8-py3-none-any.whl", hash = "sha256:2c6765ad296294c2d3a29c305fb9c7bfafc5156c0ac5c90739617161fedef57f"},
-    {file = "mitama-4.5.8.tar.gz", hash = "sha256:aab561f6e01bb6c93b6053331a4de22b57fbf0903e8ecdf3b10d28edce429720"},
+    {file = "mitama-4.5.20-py3-none-any.whl", hash = "sha256:297e74e7fe7daf747b69fc8bae6962f13e518effd086cdbf1319bc2735ff00f3"},
 ]
 pillow = [
     {file = "Pillow-8.1.2-cp36-cp36m-macosx_10_10_x86_64.whl", hash = "sha256:5cf03b9534aca63b192856aa601c68d0764810857786ea5da652581f3a44c2b0"},
@@ -963,6 +971,9 @@ urllib3 = [
     {file = "urllib3-1.26.3-py2.py3-none-any.whl", hash = "sha256:1b465e494e3e0d8939b50680403e3aedaa2bc434b7d5af64dfd3c958d7f5ae80"},
     {file = "urllib3-1.26.3.tar.gz", hash = "sha256:de3eedaad74a2683334e282005cd8d7f22f4d55fa690a2a1020a416cb0a47e73"},
 ]
+uwsgi = [
+    {file = "uWSGI-2.0.19.1.tar.gz", hash = "sha256:faa85e053c0b1be4d5585b0858d3a511d2cd10201802e8676060fd0a109e5869"},
+]
 watchdog = [
     {file = "watchdog-2.0.2-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:1f518a6940cde8720b8826a705c164e6b9bd6cf8c00f14269ffac51e017e06ec"},
     {file = "watchdog-2.0.2-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:74528772516228f6a015a647027057939ff0b695a0b864cb3037e8e1aabc7ca0"},
diff --git a/pyproject.toml b/pyproject.toml
index 0907f24..eec60c2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ include = [
 
 [tool.poetry.dependencies]
 python = "^3.6"
-mitama = "^4.5.12"
+mitama = "^4.5.20"
 
 [tool.poetry.dev-dependencies]
 unittest = "^0.0"