diff --git a/DESCRIPTION b/DESCRIPTION
index 1ae993e..4f41432 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,12 +1,12 @@
 Package: GPCERF
 Title: Gaussian Processes for Estimating Causal Exposure Response Curves
-Version: 0.2.3
+Version: 0.2.4
 Authors@R: c(
     person("Naeem", "Khoshnevis", email = "nkhoshnevis@g.harvard.edu",
-           role=c("aut","cre"), 
+           role=c("aut"), 
            comment = c(ORCID = "0000-0003-4315-1426", AFFILIATION="HUIT")),
-    person("Boyu", "Ren", email = "bren@partners.org",
-           role= c("aut"),            
+    person("Boyu", "Ren", email = "bren@mgb.org",
+           role= c("aut","cre"),            
            comment = c(ORCID = "0000-0002-5300-1184", AFFILIATION="McLean Hospital")),
     person("Tanujit", "Dey", email = "tdey@bwh.harvard.edu",
            role= c("ctb"),            
@@ -14,7 +14,7 @@ Authors@R: c(
     person("Danielle","Braun", email = "dbraun@hsph.harvard.edu",
            role=c("aut"),     
            comment = c(ORCID = "0000-0002-5177-8598", AFFILIATION="HSPH")))
-Maintainer: Naeem Khoshnevis <nkhoshnevis@g.harvard.edu>
+Maintainer: Boyu Ren <bren@mgb.org>
 Description: Provides a non-parametric Bayesian framework based on Gaussian process priors for estimating causal effects of a continuous exposure and detecting change points in the causal exposure response curves using observational data. Ren, B., Wu, X., Braun, D., Pillai, N., & Dominici, F.(2021). "Bayesian modeling for exposure response curve via gaussian processes: Causal effects of exposure to air pollution on health outcomes." arXiv preprint <arXiv:2105.03454>.
 License: GPL (>= 3)
 Language: en-US
diff --git a/NEWS.md b/NEWS.md
index 5cef239..f39e28a 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,9 @@
+# GPCERF 0.2.4 (2024-04-09)
+
+## Changed
+
+- Dr. Boyu Ren is now the package maintainer.
+
 # GPCERF 0.2.3 (2024-03-02)
 
 ## Changed
diff --git a/cran-comments.md b/cran-comments.md
index ee13456..90bb117 100644
--- a/cran-comments.md
+++ b/cran-comments.md
@@ -1,9 +1,8 @@
-Submission (March 2, 2024):
+Submission (April 9, 2024):
 
-We appreciate your efforts in reviewing the GPCERF 0.2.3 package. In this upgrade, we:
+We appreciate your efforts in reviewing the GPCERF 0.2.4 package. In this upgrade, we:
 
-- Modified the method by which the user specifies the covariate columns.
-- Resolved an issue involving data that contains a single covariate.
+- Transfer the maintainer role from Dr. Naeem Khoshnevis to Dr. Boyu Ren. 
 
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