diff --git a/.buildlibrary b/.buildlibrary
index 7a8b165..0a09cd4 100644
--- a/.buildlibrary
+++ b/.buildlibrary
@@ -1,4 +1,4 @@
-ValidationKey: '62025600'
+ValidationKey: '62126626'
 AcceptedWarnings:
 - 'Warning: package ''.*'' was built under R version'
 - 'Warning: namespace ''.*'' is not available and has been replaced'
diff --git a/CITATION.cff b/CITATION.cff
index 680ee8b..25dbb9f 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -2,8 +2,8 @@ cff-version: 1.2.0
 message: If you use this software, please cite it using the metadata from this file.
 type: software
 title: 'madrat: May All Data be Reproducible and Transparent (MADRaT) *'
-version: 3.12.0
-date-released: '2024-06-06'
+version: 3.12.1
+date-released: '2024-07-02'
 abstract: Provides a framework which should improve reproducibility and transparency
   in data processing. It provides functionality such as automatic meta data creation
   and management, rudimentary quality management, data caching, work-flow management
@@ -14,7 +14,7 @@ authors:
 - family-names: Dietrich
   given-names: Jan Philipp
   email: dietrich@pik-potsdam.de
-  orcid: 0000-0002-4309-6431
+  orcid: https://orcid.org/0000-0002-4309-6431
   affiliation: Potsdam Institute for Climate Impact Research
 - family-names: Baumstark
   given-names: Lavinia
@@ -51,7 +51,8 @@ authors:
   email: pascal.sauer@pik-potsdam.de
   affiliation: Potsdam Institute for Climate Impact Research
 license: BSD-2-Clause
-keywords: tool
+keywords:
+- tool
 repository-code: https://github.com/pik-piam/madrat
 doi: 10.5281/zenodo.1115490
 
diff --git a/DESCRIPTION b/DESCRIPTION
index 4c63494..509a13b 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,8 +1,8 @@
 Type: Package
 Package: madrat
 Title: May All Data be Reproducible and Transparent (MADRaT) *
-Version: 3.12.0
-Date: 2024-06-06
+Version: 3.12.1
+Date: 2024-07-02
 Authors@R: c(
     person("Jan Philipp", "Dietrich", , "dietrich@pik-potsdam.de", role = c("aut", "cre"),
            comment = c(affiliation = "Potsdam Institute for Climate Impact Research", ORCID = "0000-0002-4309-6431")),
@@ -66,4 +66,4 @@ VignetteBuilder:
 Config/Keywords: tool
 Encoding: UTF-8
 LazyData: no
-RoxygenNote: 7.3.1
+RoxygenNote: 7.3.2
diff --git a/README.md b/README.md
index df466bc..58c99b9 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # May All Data be Reproducible and Transparent (MADRaT) *
 
-R package **madrat**, version **3.12.0**
+R package **madrat**, version **3.12.1**
 
 [![CRAN status](https://www.r-pkg.org/badges/version/madrat)](https://cran.r-project.org/package=madrat) [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1115490.svg)](https://doi.org/10.5281/zenodo.1115490) [![R build status](https://github.com/pik-piam/madrat/workflows/check/badge.svg)](https://github.com/pik-piam/madrat/actions) [![codecov](https://codecov.io/gh/pik-piam/madrat/branch/master/graph/badge.svg)](https://app.codecov.io/gh/pik-piam/madrat) [![r-universe](https://pik-piam.r-universe.dev/badges/madrat)](https://pik-piam.r-universe.dev/builds)
 
@@ -55,7 +55,7 @@ In case of questions / problems please contact Jan Philipp Dietrich <dietrich@pi
 
 To cite package **madrat** in publications use:
 
-Dietrich J, Baumstark L, Wirth S, Giannousakis A, Rodrigues R, Bodirsky B, Leip D, Kreidenweis U, Klein D, Sauer P (2024). _madrat: May All Data be Reproducible and Transparent (MADRaT)_. doi:10.5281/zenodo.1115490 <https://doi.org/10.5281/zenodo.1115490>, R package version 3.12.0, <https://github.com/pik-piam/madrat>.
+Dietrich J, Baumstark L, Wirth S, Giannousakis A, Rodrigues R, Bodirsky B, Leip D, Kreidenweis U, Klein D, Sauer P (2024). _madrat: May All Data be Reproducible and Transparent (MADRaT)_. doi:10.5281/zenodo.1115490 <https://doi.org/10.5281/zenodo.1115490>, R package version 3.12.1, <https://github.com/pik-piam/madrat>.
 
 A BibTeX entry for LaTeX users is
 
@@ -64,7 +64,7 @@ A BibTeX entry for LaTeX users is
   title = {madrat: May All Data be Reproducible and Transparent (MADRaT)},
   author = {Jan Philipp Dietrich and Lavinia Baumstark and Stephen Wirth and Anastasis Giannousakis and Renato Rodrigues and Benjamin Leon Bodirsky and Debbora Leip and Ulrich Kreidenweis and David Klein and Pascal Sauer},
   year = {2024},
-  note = {R package version 3.12.0},
+  note = {R package version 3.12.1},
   url = {https://github.com/pik-piam/madrat},
   doi = {10.5281/zenodo.1115490},
 }
diff --git a/tests/testthat/test-toolAggregate.R b/tests/testthat/test-toolAggregate.R
index 667c6d8..ccf79d4 100644
--- a/tests/testthat/test-toolAggregate.R
+++ b/tests/testthat/test-toolAggregate.R
@@ -222,7 +222,7 @@ test_that("Edge cases work", {
 test_that("columns with only zeros in weight produce a warning", {
   weight <- pm
   weight[, , ] <- 0
-  expect_message(toolAggregate(pm, rel, weight = weight), "Weight sum is 0")
+  expect_warning(toolAggregate(pm, rel, weight = weight), "Weight sum is 0")
   expect_error(toolAggregate(pm, rel, weight = weight, zeroWeight = "stop"), "Weight sum is 0")
   expect_silent(toolAggregate(pm, rel, weight = weight, zeroWeight = "allow"))
 })