diff --git a/poetry.lock b/poetry.lock
index 5e02dce..599ed04 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -69,7 +69,7 @@ python-versions = "*"
 
 [[package]]
 name = "charset-normalizer"
-version = "2.0.4"
+version = "2.0.6"
 description = "The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet."
 category = "main"
 optional = false
@@ -641,7 +641,7 @@ pbr = ">=2.0.0,<2.1.0 || >2.1.0"
 
 [[package]]
 name = "testfixtures"
-version = "6.18.1"
+version = "6.18.2"
 description = "A collection of helpers and mock objects for unit tests and doc tests."
 category = "dev"
 optional = false
@@ -670,7 +670,7 @@ python-versions = "*"
 
 [[package]]
 name = "urllib3"
-version = "1.26.6"
+version = "1.26.7"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
 category = "main"
 optional = false
@@ -732,8 +732,8 @@ certifi = [
     {file = "certifi-2021.5.30.tar.gz", hash = "sha256:2bbf76fd432960138b3ef6dda3dde0544f27cbf8546c458e60baf371917ba9ee"},
 ]
 charset-normalizer = [
-    {file = "charset-normalizer-2.0.4.tar.gz", hash = "sha256:f23667ebe1084be45f6ae0538e4a5a865206544097e4e8bbcacf42cd02a348f3"},
-    {file = "charset_normalizer-2.0.4-py3-none-any.whl", hash = "sha256:0c8911edd15d19223366a194a513099a302055a962bca2cec0f54b8b63175d8b"},
+    {file = "charset-normalizer-2.0.6.tar.gz", hash = "sha256:5ec46d183433dcbd0ab716f2d7f29d8dee50505b3fdb40c6b985c7c4f5a3591f"},
+    {file = "charset_normalizer-2.0.6-py3-none-any.whl", hash = "sha256:5d209c0a931f215cee683b6445e2d77677e7e75e159f78def0db09d68fafcaa6"},
 ]
 colorama = [
     {file = "colorama-0.4.4-py2.py3-none-any.whl", hash = "sha256:9f47eda37229f68eee03b24b9748937c7dc3868f906e8ba69fbcbdd3bc5dc3e2"},
@@ -1041,8 +1041,8 @@ stevedore = [
     {file = "stevedore-3.4.0.tar.gz", hash = "sha256:59b58edb7f57b11897f150475e7bc0c39c5381f0b8e3fa9f5c20ce6c89ec4aa1"},
 ]
 testfixtures = [
-    {file = "testfixtures-6.18.1-py2.py3-none-any.whl", hash = "sha256:486be7b01eb71326029811878a3317b7e7994324621c0ec633c8e24499d8d5b3"},
-    {file = "testfixtures-6.18.1.tar.gz", hash = "sha256:0a6422737f6d89b45cdef1e2df5576f52ad0f507956002ce1020daa9f44211d6"},
+    {file = "testfixtures-6.18.2-py2.py3-none-any.whl", hash = "sha256:9c2316232de0ef6915d5446dcccaec9c4a6092751ba2ff7d30b9c14a954a90e3"},
+    {file = "testfixtures-6.18.2.tar.gz", hash = "sha256:61c25cb0213f68d2dcd2b098d9d2e7f47afc3b4429d66e1cdeb1072be2fcb241"},
 ]
 toml = [
     {file = "toml-0.10.2-py2.py3-none-any.whl", hash = "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b"},
@@ -1054,8 +1054,8 @@ typing-extensions = [
     {file = "typing_extensions-3.10.0.2.tar.gz", hash = "sha256:49f75d16ff11f1cd258e1b988ccff82a3ca5570217d7ad8c5f48205dd99a677e"},
 ]
 urllib3 = [
-    {file = "urllib3-1.26.6-py2.py3-none-any.whl", hash = "sha256:39fb8672126159acb139a7718dd10806104dec1e2f0f6c88aab05d17df10c8d4"},
-    {file = "urllib3-1.26.6.tar.gz", hash = "sha256:f57b4c16c62fa2760b7e3d97c35b255512fb6b59a259730f36ba32ce9f8e342f"},
+    {file = "urllib3-1.26.7-py2.py3-none-any.whl", hash = "sha256:c4fdf4019605b6e5423637e01bc9fe4daef873709a7973e195ceba0a62bbc844"},
+    {file = "urllib3-1.26.7.tar.gz", hash = "sha256:4987c65554f7a2dbf30c18fd48778ef124af6fab771a377103da0585e2336ece"},
 ]
 yapf = [
     {file = "yapf-0.31.0-py2.py3-none-any.whl", hash = "sha256:e3a234ba8455fe201eaa649cdac872d590089a18b661e39bbac7020978dd9c2e"},