diff --git a/DESCRIPTION b/DESCRIPTION
index bc8124e..c1bea5a 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: semfindr
 Title: Influential Cases in Structural Equation Modeling
-Version: 0.1.5.6
+Version: 0.1.5.7
 Authors@R: c(
     person(given = "Shu Fai",
            family = "Cheung",
diff --git a/NEWS.md b/NEWS.md
index bec6f8b..a12523e 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,4 +1,4 @@
-# semfindr 0.1.5.6
+# semfindr 0.1.5.7
 
 - Fixed typos in the article on
   multiple-group models. (0.1.5.1)
@@ -21,6 +21,7 @@
   statistic. (0.1.5.5)
 - Make plot functions to work with NAs.
   (0.1.5.6)
+- Update `README.md`. (0.1.5.7)
 
 
 # semfindr 0.1.5
diff --git a/README.md b/README.md
index 3c0ea66..ff95537 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 [![R-CMD-check](https://github.com/sfcheung/semfindr/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/sfcheung/semfindr/actions/workflows/R-CMD-check.yaml)
 <!-- badges: end -->
 
-(Version 0.1.5.6, updated on 2023-10-05, [release history](https://sfcheung.github.io/semfindr/news/index.html))
+(Version 0.1.5.7, updated on 2023-10-05, [release history](https://sfcheung.github.io/semfindr/news/index.html))
 
 # semfindr: Finding influential cases in SEM <img src="man/figures/logo.png" align="right" height="150" />
 
@@ -68,9 +68,15 @@ vignette *Approximate Case Influence Using Scores and Casewise Likelihood*
 
 # Installation
 
+The stable version at CRAN can be installed by `install.packages()`:
+
+```r
+install.packages("semfindr")
+```
+
 The latest developmental version can be installed by `remotes::install_github`:
 
-```{r}
+```r
 remotes::install_github("sfcheung/semfindr")
 ```