diff --git a/DESCRIPTION b/DESCRIPTION
index f14a43c..89137c4 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: GD
 Title: Geographical Detectors for Assessing Spatial Factors
-Version: 10.9
+Version: 10.10
 Authors@R: 
     c(
       person(given = "Yongze", family = "Song",
diff --git a/NEWS.md b/NEWS.md
index 18bd6da..0fc7baa 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,5 @@
+# GD 10.10
+
 # GD 10.9
 
 * Recommended to install `gdverse` version `1.6` or higher (#5).
diff --git a/R/zzz.R b/R/zzz.R
index 54c85d8..1a8258d 100644
--- a/R/zzz.R
+++ b/R/zzz.R
@@ -1,5 +1,5 @@
 .onAttach<-function(...){
-  packageStartupMessage("This is GD 10.9.
+  packageStartupMessage("This is GD 10.10.
                         \nTo cite GD in publications, please use:
                         \nSong, Y., Wang, J., Ge, Y. & Xu, C. (2020) An optimal parameters-based geographical detector model enhances geographic characteristics of explanatory variables for spatial heterogeneity analysis: Cases with different types of spatial data, GIScience & Remote Sensing, 57(5), 593-610. doi: 10.1080/15481603.2020.1760434.
                         \nIf you find that GD runs for a long time without returning results, please try using the gdverse package we developed.