diff --git a/tests.cfg b/tests.cfg
index 2cb7c3140c..2fbdc1ac0c 100644
--- a/tests.cfg
+++ b/tests.cfg
@@ -143,7 +143,7 @@ argh = 0.26.2
 args = 0.1.0
 asn1crypto = 1.3.0
 cached-property = 1.5.1
-check-manifest = 0.42
+check-manifest = 0.45
 clint = 0.5.1
 cryptography = 2.9.2
 Deprecated = 1.2.10
diff --git a/versions.cfg b/versions.cfg
index a6960c632c..8de6e09907 100644
--- a/versions.cfg
+++ b/versions.cfg
@@ -14,6 +14,7 @@ setuptools = 42.0.2
 zc.buildout = 2.13.3
 
 # recipes and extensions
+build = 0.1.0
 buildout.requirements = 0.2.2
 cachecontrol = 0.12.6
 click = 7.1.2
@@ -32,7 +33,7 @@ twine = 3.1.1
 z3c.template = 3.1.0
 zest.releaser = 6.22.1
 zestreleaser.towncrier = 1.2.0
-pep517 = 0.8.2
+pep517 = 0.9.1
 ZopeUndo = 4.3
 
 # testing