diff --git a/requirements-dev.txt b/requirements-dev.txt
index a849138..f184ce4 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -55,9 +55,9 @@ mccabe==0.6.1 \
 pycodestyle==2.5.0 \
     --hash=sha256:95a2219d12372f05704562a14ec30bc76b05a5b297b21a5dfe3f6fac3491ae56 \
     --hash=sha256:e40a936c9a450ad81df37f549d676d127b1b66000a6c500caa2b085bc0ca976c
-pydocstyle==5.0.2 \
-    --hash=sha256:da7831660b7355307b32778c4a0dbfb137d89254ef31a2b2978f50fc0b4d7586 \
-    --hash=sha256:f4f5d210610c2d153fae39093d44224c17429e2ad7da12a8b419aba5c2f614b5
+pydocstyle==6.1.1 \
+    --hash=sha256:1d41b7c459ba0ee6c345f2eb9ae827cab14a7533a88c5c6f7e94923f72df92dc \
+    --hash=sha256:6987826d6775056839940041beef5c08cc7e3d71d63149b48e36727f70144dc4
 pyflakes==2.1.1 \
     --hash=sha256:17dbeb2e3f4d772725c777fabc446d5634d1038f234e77343108ce445ea69ce0 \
     --hash=sha256:d976835886f8c5b31d47970ed689944a0262b5f3afa00a5a7b4dc81e5449f8a2