diff --git a/poetry.lock b/poetry.lock
index 0ac9b990..de22008c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -487,7 +487,7 @@ python-versions = "*"
 
 [[package]]
 name = "sphinx"
-version = "3.5.1"
+version = "3.5.2"
 description = "Python documentation generator"
 category = "dev"
 optional = false
@@ -643,7 +643,7 @@ python-versions = "*"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.0"
-content-hash = "626b2ed0bbf11d0b0f8f4d893c30aade008ac9a62e4d146aab57d6d49f508af7"
+content-hash = "7c4bd6571d438cbf444b57d2a0eb0c27916c5716e734f4963872e01147901866"
 
 [metadata.files]
 alabaster = [
@@ -1083,8 +1083,8 @@ snowballstemmer = [
     {file = "snowballstemmer-2.1.0.tar.gz", hash = "sha256:e997baa4f2e9139951b6f4c631bad912dfd3c792467e2f03d7239464af90e914"},
 ]
 sphinx = [
-    {file = "Sphinx-3.5.1-py3-none-any.whl", hash = "sha256:e90161222e4d80ce5fc811ace7c6787a226b4f5951545f7f42acf97277bfc35c"},
-    {file = "Sphinx-3.5.1.tar.gz", hash = "sha256:11d521e787d9372c289472513d807277caafb1684b33eb4f08f7574c405893a9"},
+    {file = "Sphinx-3.5.2-py3-none-any.whl", hash = "sha256:ef64a814576f46ec7de06adf11b433a0d6049be007fefe7fd0d183d28b581fac"},
+    {file = "Sphinx-3.5.2.tar.gz", hash = "sha256:672cfcc24b6b69235c97c750cb190a44ecd72696b4452acaf75c2d9cc78ca5ff"},
 ]
 sphinxcontrib-applehelp = [
     {file = "sphinxcontrib-applehelp-1.0.2.tar.gz", hash = "sha256:a072735ec80e7675e3f432fcae8610ecf509c5f1869d17e2eecff44389cdbc58"},
diff --git a/pyproject.toml b/pyproject.toml
index 03b61e3f..49fd7b5c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ python-gvm = ">=20.0,<22.0"
 [tool.poetry.dev-dependencies]
 autohooks = "^2.2.0"
 autohooks-plugin-pylint = "^1.2.0"
-sphinx = "^3.5.1"
+sphinx = "^3.5.2"
 pylint = "^2.7.2"
 coverage = "^5.5"
 autohooks-plugin-black = {version = "^1.2.0", python = "^3.6"}