diff --git a/backend/poetry.lock b/backend/poetry.lock
index ad5bceb48..059224d15 100644
--- a/backend/poetry.lock
+++ b/backend/poetry.lock
@@ -999,13 +999,13 @@ requests = "*"
 
 [[package]]
 name = "openpyxl"
-version = "3.0.10"
+version = "3.1.4"
 description = "A Python library to read/write Excel 2010 xlsx/xlsm files"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.8"
 files = [
-    {file = "openpyxl-3.0.10-py2.py3-none-any.whl", hash = "sha256:0ab6d25d01799f97a9464630abacbb34aafecdcaa0ef3cba6d6b3499867d0355"},
-    {file = "openpyxl-3.0.10.tar.gz", hash = "sha256:e47805627aebcf860edb4edf7987b1309c1b3632f3750538ed962bbcc3bd7449"},
+    {file = "openpyxl-3.1.4-py2.py3-none-any.whl", hash = "sha256:ec17f6483f2b8f7c88c57e5e5d3b0de0e3fb9ac70edc084d28e864f5b33bbefd"},
+    {file = "openpyxl-3.1.4.tar.gz", hash = "sha256:8d2c8adf5d20d6ce8f9bca381df86b534835e974ed0156dacefa76f68c1d69fb"},
 ]
 
 [package.dependencies]
@@ -1958,4 +1958,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.12"
-content-hash = "a4b330d6d039279db4493c1a5169c607257136e5ce460503b5d12a5007334d36"
+content-hash = "0663129295f88dbe4ee14db9c35358e5373d4dbcb7a12f8d3666a6a36a205203"
diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 17401b4b8..c74161a95 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -43,7 +43,7 @@ python-redmine = "^2.5.0"
 sentry-sdk = "^2.6.0"
 whitenoise = "^6.7.0"
 django-hurricane = "^1.5.0"
-openpyxl = "3.0.10" # TODO: dependency of `pyexcel-xlsx` Remove as soon as https://github.com/pyexcel/pyexcel-xlsx/issues/52 is resolved.
+openpyxl = "3.1.4" # TODO: dependency of `pyexcel-xlsx` Remove as soon as https://github.com/pyexcel/pyexcel-xlsx/issues/52 is resolved.
 psycopg = {extras = ["binary"], version = "^3.1.19"}
 
 [tool.poetry.group.dev.dependencies]