diff --git a/docs/changes.xml b/docs/changes.xml
index 85edc71b..00282868 100644
--- a/docs/changes.xml
+++ b/docs/changes.xml
@@ -16,20 +16,20 @@
                 unit-jsc14 unit-jsc15 unit-jsc16 unit-jsc17 unit-jsc18
                 unit-jsc19 unit-jsc20
                 unit-wasm"
-         ver="1.32.0" rev="1"
+         ver="1.31.1" rev="1"
          date="" time=""
          packager="Nginx Packaging <nginx-packaging@f5.com>">
 
 <change>
 <para>
-NGINX Unit updated to 1.32.0.
+NGINX Unit updated to 1.31.1.
 </para>
 </change>
 
 </changes>
 
 
-<changes apply="unit" ver="1.32.0" rev="1"
+<changes apply="unit" ver="1.31.1" rev="1"
          date="" time=""
          packager="Nginx Packaging &lt;nginx-packaging@f5.com&gt;">
 
diff --git a/docs/unit-openapi.yaml b/docs/unit-openapi.yaml
index 784ed640..4ce26fa0 100644
--- a/docs/unit-openapi.yaml
+++ b/docs/unit-openapi.yaml
@@ -1,6 +1,6 @@
 openapi: 3.0.0
 info:
-  title: "NGINX Unit 1.31.0"
+  title: "NGINX Unit 1.31.1"
   description: "NGINX Unit is a lightweight and versatile application runtime
     that provides the essential components for your web application as a
     single open-source server: running application code, serving static assets,
diff --git a/version b/version
index fa657bae..3de0f8d3 100644
--- a/version
+++ b/version
@@ -1,5 +1,5 @@
 
 # Copyright (C) NGINX, Inc.
 
-NXT_VERSION=1.32.0
-NXT_VERNUM=13200
+NXT_VERSION=1.31.1
+NXT_VERNUM=13101