diff --git a/README.md b/README.md
index 857cf5c..3a9c9b5 100644
--- a/README.md
+++ b/README.md
@@ -63,7 +63,7 @@ Then, from inside the cloned repository, build the Docker image:
 Load the Docker container image onto your computer:
 
 ```bash
-docker load -i docker/dockerimg_dswx_s1_calval_0.4.1.tar
+docker load -i docker/dockerimg_dswx_s1_calval_0.4.2.tar
 ```
 
 See DSWx-SAR Science Algorithm Software (SAS) User Guide for instructions on processing via Docker.
diff --git a/build_docker.sh b/build_docker.sh
index 96c8075..9b804c1 100644
--- a/build_docker.sh
+++ b/build_docker.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 IMAGE=opera/dswx-s1
-tag=calval_0.4.1
+tag=calval_0.4.2
 echo "IMAGE is $IMAGE:$tag"
 
 # fail on any non-zero exit codes
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 98d91af..8298105 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -2,7 +2,7 @@ FROM oraclelinux:8
 
 LABEL author="OPERA ADT" \
     description="DSWX-SAR calval release R4" \
-    version="0.4.1-calval"
+    version="0.4.2-calval"
 
 RUN yum -y update &&\
     yum -y install curl &&\
diff --git a/src/dswx_sar/version.py b/src/dswx_sar/version.py
index 52f089c..1376913 100644
--- a/src/dswx_sar/version.py
+++ b/src/dswx_sar/version.py
@@ -1 +1 @@
-VERSION = '0.4.1'
+VERSION = '0.4.2'