diff --git a/backend/poetry.lock b/backend/poetry.lock
index 436d1a0..8fee39b 100644
--- a/backend/poetry.lock
+++ b/backend/poetry.lock
@@ -311,11 +311,11 @@ pyparsing = ">=2.0.2,<3.0.5 || >3.0.5"
 
 [[package]]
 name = "pillow"
-version = "8.4.0"
+version = "9.0.0"
 description = "Python Imaging Library (Fork)"
 category = "dev"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.7"
 
 [[package]]
 name = "psycopg2"
@@ -678,7 +678,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.9"
-content-hash = "ad0493881920bf632da486a7035f3a2ebe5cf1b85ab88301a335fc226c14ccb8"
+content-hash = "d3837f61e640b9a0c17fe2d857adefab0c03a00589cd80773564636f5f84f453"
 
 [metadata.files]
 alabaster = [
@@ -880,47 +880,38 @@ packaging = [
     {file = "packaging-21.3.tar.gz", hash = "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb"},
 ]
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diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 73495bb..c0d2def 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -23,7 +23,7 @@ Sphinx = "^4.2.0"
 sphinx-rtd-theme = "^1.0.0"
 sphinx-autobuild = "^2021.3.14"
 rinohtype = "^0.5.3"
-Pillow = "^8.4.0"
+Pillow = "^9.0.0"
 jsx-lexer = "^1.0.0"
 sphinxcontrib-httpdomain = "^1.8.0"