diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19a6f69b..9403cb32 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # CHANGELOG
 
+## v4.31.1 - 2025-10-08
+### Fixes
+* :bug: make sure input sources are only initialized once
+
+
 ## v4.31.0 - 2025-10-07
 ### Changes
 * :sparkles: allow comparing v2 field confidence
diff --git a/package-lock.json b/package-lock.json
index 788c390a..64111525 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "mindee",
-  "version": "4.31.0",
+  "version": "4.31.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mindee",
-      "version": "4.31.0",
+      "version": "4.31.1",
       "license": "MIT",
       "dependencies": {
         "@cantoo/pdf-lib": "^2.3.2",
diff --git a/package.json b/package.json
index 530084ad..dc9d9136 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mindee",
-  "version": "4.31.0",
+  "version": "4.31.1",
   "description": "Mindee Client Library for Node.js",
   "main": "src/index.js",
   "bin": "bin/mindee.js",