diff --git a/DESCRIPTION b/DESCRIPTION
index 9a698c6753d0e43c932580d58a790f35524d499f..fa95aeb65fd131a6a215618f7cb73cf6ab167d8b 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -28,7 +28,7 @@ Imports:
   utils
 Suggests:
   knitr, markdown, rmarkdown,
-  caRamel, coda, DEoptim, FME, ggmcmc, hydroPSO, Rmalschains,
+  caRamel, coda, DEoptim, FME, ggmcmc, hydroPSO,
   GGally, ggplot2,
   testthat
 Description: Hydrological modelling tools developed at INRAE-Antony (HYCAR Research Unit, France). The package includes several conceptual rainfall-runoff models (GR4H, GR5H, GR4J, GR5J, GR6J, GR2M, GR1A) that can be applied either on a lumped or semi-distributed way. A snow accumulation and melt model (CemaNeige) and the associated functions for the calibration and evaluation of models are also included. Use help(airGR) for package description and references.
diff --git a/vignettes/V02.1_param_optim.Rmd b/vignettes/V02.1_param_optim.Rmd
index 7ded694184a5c890656f25e7c90b3ca044d9e145..717253c1c53eb4e1b926c11bfecc2221185d536a 100644
--- a/vignettes/V02.1_param_optim.Rmd
+++ b/vignettes/V02.1_param_optim.Rmd
@@ -14,7 +14,7 @@ vignette: >
 library(airGR)
 library(DEoptim)
 library(hydroPSO) # Needs R version >= 3.6 or latticeExtra <= 0.6-28 on R 3.5
-library(Rmalschains)
+# library(Rmalschains) # removed from CRAN since 2023-04-03
 library(caRamel)
 library(ggplot2)
 library(GGally)
@@ -172,6 +172,12 @@ optPSO <- hydroPSO::hydroPSO(fn = OptimGR4J,
 
 ## MA-LS-Chains
 
+```{r, warning=FALSE, results='hide', message=FALSE, eval=FALSE}
+# to install the package temporary removde from CRAN
+# Rtools needed (windows : https://cran.r-project.org/bin/windows/Rtools/)
+install.packages("https://cran.r-project.org/src/contrib/Archive/Rmalschains/Rmalschains_0.2-8.tar.gz", 
+                 repos = NULL, type = "source", dependencies = TRUE)
+```
 ```{r, warning=FALSE, results='hide', eval=FALSE}
 optMALS <- Rmalschains::malschains(fn = OptimGR4J,
                                    lower = lowerGR4J, upper = upperGR4J,