diff --git a/poetry.lock b/poetry.lock
index 1ae3d9d4..357e81e6 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -777,7 +777,7 @@ test = ["pytest"]
 
 [[package]]
 name = "testfixtures"
-version = "6.16.0"
+version = "6.17.0"
 description = "A collection of helpers and mock objects for unit tests and doc tests."
 category = "main"
 optional = true
@@ -1238,8 +1238,8 @@ sphinxcontrib-serializinghtml = [
     {file = "sphinxcontrib_serializinghtml-1.1.4-py2.py3-none-any.whl", hash = "sha256:f242a81d423f59617a8e5cf16f5d4d74e28ee9a66f9e5b637a18082991db5a9a"},
 ]
 testfixtures = [
-    {file = "testfixtures-6.16.0-py2.py3-none-any.whl", hash = "sha256:017f1924f464189915e67162f530758537175ddd1461b211c666f0587ebc2939"},
-    {file = "testfixtures-6.16.0.tar.gz", hash = "sha256:f3f567f35b3d004b0e19ee7dff61e75e3c05f3ffc1c41580d967b1fe144b3de9"},
+    {file = "testfixtures-6.17.0-py2.py3-none-any.whl", hash = "sha256:ebcc3e024d47bb58a60cdc678604151baa0c920ae2814004c89ac9066de31b2c"},
+    {file = "testfixtures-6.17.0.tar.gz", hash = "sha256:fa7c170df68ca6367eda061e9ec339ae3e6d3679c31e04033f83ef97a7d7d0ce"},
 ]
 text-unidecode = [
     {file = "text-unidecode-1.3.tar.gz", hash = "sha256:bad6603bb14d279193107714b288be206cac565dfa49aa5b105294dd5c4aab93"},