diff --git a/DESCRIPTION b/DESCRIPTION
index 88d628cc4b9fe35d88bb782b43f8bdc363b24ed3..7b30a1b513ff0a39df168113aa9b21341c04ccaf 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: airGRteaching
 Type: Package
 Title: Teaching Hydrological Modelling with the GR Rainfall-Runoff Models ('Shiny' Interface Included)
-Version: 0.2.8.3
+Version: 0.2.8.4
 Date: 2020-02-05
 Authors@R: c(
   person("Olivier", "Delaigue", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-7668-8468"), email = "airGR@inrae.fr"),
diff --git a/NEWS.Rmd b/NEWS.Rmd
index 3bf6250d2c1d63e40494ae1eb31e26f65b921699..88adbc7a62c0fbe12694271af8af6bdf3a132467 100644
--- a/NEWS.Rmd
+++ b/NEWS.Rmd
@@ -14,7 +14,7 @@ output:
 
 
 
-### 0.2.8.3 Release Notes (2020-02-05)
+### 0.2.8.4 Release Notes (2020-02-05)
 
 
 #### New features
diff --git a/man/airGRteaching.Rd b/man/airGRteaching.Rd
index 1548f348b848a9726c4ae136418cd8e300a024ce..ac5f96f549097f811700a1c82d58042b2c9a90f7 100644
--- a/man/airGRteaching.Rd
+++ b/man/airGRteaching.Rd
@@ -84,4 +84,12 @@ For more information and to get started with the package, you can refer to the v
 
 }
 
-\keyword{hydrology, model, efficiency criterion, calibration, GR4J, airGR, student, teaching, shiny}
+\concept{hydrology}
+\concept{model}
+\concept{efficiency criterion}
+\concept{calibration}
+\concept{GR4J}
+\concept{airGR}
+\concept{student}
+\concept{teaching}
+\concept{shiny}