diff --git a/DESCRIPTION b/DESCRIPTION
index d5b486befdd65419a3623d32837b485765082ffb..42c3b528bb8b724bd17ec1eca02d611b63f48302 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,13 +1,13 @@
 Package: airGR
 Type: Package
 Title: Suite of GR Hydrological Models for Precipitation-Runoff Modelling
-Version: 1.2.11.20
+Version: 1.2.11.21
 Date: 2019-03-28
 Authors@R: c(
   person("Laurent", "Coron", role = c("aut", "trl"), comment = c(ORCID = "0000-0002-1503-6204")),
-  person("Charles", "Perrin", role = c("aut", "ths"), comment = c(ORCID = "0000-0001-8552-1881")),
   person("Olivier", "Delaigue", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-7668-8468"), email = "airGR@irstea.fr"),
   person("Guillaume", "Thirel", role = c("aut"), comment = c(ORCID = "0000-0002-1444-1830")),
+  person("Charles", "Perrin", role = c("aut", "ths"), comment = c(ORCID = "0000-0001-8552-1881")),
   person("Claude", "Michel", role = c("aut", "ths")),
   person("Vazken", "Andréassian", role = c("ctb", "ths"), comment = c(ORCID = "0000-0001-7124-9303")),
   person("François", "Bourgin", role = c("ctb"), comment = c(ORCID = "0000-0002-2820-7260", vignette = "'Parameter estimation' vignettes")),
diff --git a/NEWS.rmd b/NEWS.rmd
index 5fc238cf73bf4cec0847b434ab01c8f0d7cfb869..b1a1de66b5eaae2ace1a3f84708a6b6d3051d442 100644
--- a/NEWS.rmd
+++ b/NEWS.rmd
@@ -13,7 +13,7 @@ output:
 
 
 
-### 1.2.11.20 Release Notes (2019-03-28) 
+### 1.2.11.21 Release Notes (2019-03-28) 
 
 
 
@@ -87,6 +87,8 @@ output:
 
 - <code>plot.OutputsModel()</code> does not return a warning message anymore when <code>Qobs = NULL</code>.
 
+- The order of authors has been updated in the DESCRIPTION and the CITATION files.
+
 ____________________________________________________________________________________
 
 
diff --git a/inst/CITATION b/inst/CITATION
index 8f4902861a2720e3741609c5e79698a56fa2c287..141e921ada67a09ca936313d0464f9779cb29e3c 100644
--- a/inst/CITATION
+++ b/inst/CITATION
@@ -25,13 +25,13 @@ bibentry(bibtype="Article",
 
 bibentry(bibtype="Manual",
          title = "{airGR}: Suite of {GR} Hydrological Models for Precipitation-Runoff Modelling",
-         author = personList(as.person("L. Coron"), as.person("C. Perrin"), as.person("O. Delaigue"), as.person("G. Thirel"), as.person("C. Michel")),
+         author = personList(as.person("L. Coron"), as.person("O. Delaigue"), as.person("G. Thirel"), as.person("C. Perrin"), as.person("C. Michel")),
          journal = "R News",
          year = year,
          note = note,
          url = "https://CRAN.R-project.org/package=airGR/",
          textVersion = 
-           paste0("Coron, L., Perrin, C., Delaigue, O., Thirel, G. and Michel, C. (",
+           paste0("Coron, L., Delaigue, O., Thirel, G., Perrin, C. and Michel, C. (",
                   year,
                   "). airGR: Suite of GR Hydrological Models for Precipitation-Runoff Modelling. ",
                   note,