diff --git a/poetry.lock b/poetry.lock
index 595ed0f..af5d1ea 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -208,17 +208,17 @@ category = "dev"
 description = "A library for property-based testing"
 name = "hypothesis"
 optional = false
-python-versions = ">=3.5"
-version = "5.1.0"
+python-versions = ">=3.5.2"
+version = "5.15.1"
 
 [package.dependencies]
 attrs = ">=19.2.0"
 sortedcontainers = ">=2.1.0,<3.0.0"
 
 [package.extras]
-all = ["django (>=1.11)", "dpcontracts (>=0.4)", "lark-parser (>=0.6.5)", "numpy (>=1.9.0)", "pandas (>=0.19)", "pytest (>=4.3)", "python-dateutil (>=1.4)", "pytz (>=2014.1)"]
+all = ["django (>=2.2)", "dpcontracts (>=0.4)", "lark-parser (>=0.6.5)", "numpy (>=1.9.0)", "pandas (>=0.19)", "pytest (>=4.3)", "python-dateutil (>=1.4)", "pytz (>=2014.1)"]
 dateutil = ["python-dateutil (>=1.4)"]
-django = ["pytz (>=2014.1)", "django (>=1.11)"]
+django = ["pytz (>=2014.1)", "django (>=2.2)"]
 dpcontracts = ["dpcontracts (>=0.4)"]
 lark = ["lark-parser (>=0.6.5)"]
 numpy = ["numpy (>=1.9.0)"]
@@ -716,7 +716,7 @@ testing = ["jaraco.itertools", "func-timeout"]
 docs = ["sphinx", "sphinx-autodoc-typehints", "toml"]
 
 [metadata]
-content-hash = "3a6dcc3ae1990cd6f71272895d793fb159ec0b37d105a77e9eff92de138a71c5"
+content-hash = "c0f188944c770465fe872582c74801eb99761bc2f59c9b47c81c4313e52db843"
 python-versions = ">= 3.6"
 
 [metadata.files]
@@ -833,8 +833,8 @@ gitpython = [
     {file = "GitPython-3.1.2.tar.gz", hash = "sha256:864a47472548f3ba716ca202e034c1900f197c0fb3a08f641c20c3cafd15ed94"},
 ]
 hypothesis = [
-    {file = "hypothesis-5.1.0-py3-none-any.whl", hash = "sha256:6abd5740ed05dff9efe0df18f0f7013eb4aa99c143f7177fbefb603888a990d0"},
-    {file = "hypothesis-5.1.0.tar.gz", hash = "sha256:1b03916e72265655378c5e67f27663adb1e6175fe1ad906d58997b7a04ce99ad"},
+    {file = "hypothesis-5.15.1-py3-none-any.whl", hash = "sha256:d44142b80572bb3392dd018a6b2e59f54b2ba77da50e2dd0cbddd815b7a84005"},
+    {file = "hypothesis-5.15.1.tar.gz", hash = "sha256:f523846f1e323e5d74694a437ef9f681ac1643e45404dc5c5bb7d1ee947c4a99"},
 ]
 idna = [
     {file = "idna-2.9-py2.py3-none-any.whl", hash = "sha256:a068a21ceac8a4d63dbfd964670474107f541babbd2250d61922f029858365fa"},
diff --git a/pyproject.toml b/pyproject.toml
index d8aad58..a30c7dd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ toml = { version = "^0.10.0", optional = true }
 
 [tool.poetry.dev-dependencies]
 pytest = "^5.4"
-hypothesis = "^5.1"
+hypothesis = "^5.15"
 isort = "^4.3"
 flake8 = "^3.8"
 black = "^19.3b0"