diff --git a/.versioneer-lookup b/.versioneer-lookup
index 148123e0..9e4f93d0 100644
--- a/.versioneer-lookup
+++ b/.versioneer-lookup
@@ -14,11 +14,11 @@ master
 HEAD
 \(detached.*
 
-# maintenance is currently the branch for preparation of maintenance release 1.2.11
+# maintenance is currently the branch for preparation of maintenance release 1.2.12
 # so are any fix/... and improve/... branches
-maintenance 1.2.11 692166f067329cd3d6fdc84389e0dd76184c5e0c pep440-dev
-fix/.* 1.2.11 692166f067329cd3d6fdc84389e0dd76184c5e0c pep440-dev
-improve/.* 1.2.11 692166f067329cd3d6fdc84389e0dd76184c5e0c pep440-dev
+maintenance 1.2.12 e79703ba6eec1ecdfa21cf8f2a9efbc1eb6120e3 pep440-dev
+fix/.* 1.2.12 e79703ba6eec1ecdfa21cf8f2a9efbc1eb6120e3 pep440-dev
+improve/.* 1.2.12 e79703ba6eec1ecdfa21cf8f2a9efbc1eb6120e3 pep440-dev
 
 # every other branch is a development branch and thus gets resolved to 1.3.0-dev for now
 .* 1.3.0 198d3450d94be1a2 pep440-dev