diff --git a/.appveyor.yml b/.appveyor.yml
index 998bcf281..d3d1e5e27 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -59,7 +59,6 @@ for:
       # setup go
       - rmdir c:\go /s /q
       - "choco install golang --version 1.15.7"
-      - "choco install bzr"
       - "choco install dep"
       - setx PATH "C:\go\bin;C:\gopath\bin;C:\Program Files (x86)\Bazaar\;C:\Program Files\Mercurial;%PATH%;"
       - "go version"
diff --git a/requirements/dev.txt b/requirements/dev.txt
index a8b76c49b..a73187525 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -18,4 +18,4 @@ backports.tempfile==1.0; python_version<"3.7"
 
 
 # formatter
-black==20.8b1
\ No newline at end of file
+black==22.3.0
\ No newline at end of file