diff --git a/clients/nodejs/sliderule/package.json b/clients/nodejs/sliderule/package.json
index 8a5f56d19..f1007b31d 100644
--- a/clients/nodejs/sliderule/package.json
+++ b/clients/nodejs/sliderule/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@sliderule/sliderule",
   "description": "client for the SlideRule on-demand science data processing service",
-  "version": "4.2.1",
+  "version": "4.2.2",
   "keywords": [
     "sliderule"
   ],
diff --git a/clients/python/version.txt b/clients/python/version.txt
index 85c71c86a..ec151ba4c 100644
--- a/clients/python/version.txt
+++ b/clients/python/version.txt
@@ -1 +1 @@
-v4.2.1
+v4.2.2
diff --git a/version.txt b/version.txt
index 85c71c86a..ec151ba4c 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-v4.2.1
+v4.2.2