diff --git a/CHANGELOG.md b/CHANGELOG.md
index 22ff8bd43..cf4a0892c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+- 1.3.1
+    - Update to Ok Bloomer 1.0 stable
+
 - 1.3.0
     - Switch back to original fork of Tensor
     - Added `maxBins` hyper-parameter to CART-based learners
diff --git a/composer.json b/composer.json
index 80f0a0c57..4d09db988 100644
--- a/composer.json
+++ b/composer.json
@@ -38,7 +38,7 @@
         "amphp/parallel": "^1.3",
         "psr/log": "^1.1",
         "rubix/tensor": "^3.0",
-        "scienide/okbloomer": "^1.0@beta",
+        "scienide/okbloomer": "^1.0",
         "symfony/polyfill-mbstring": "^1.0",
         "symfony/polyfill-php80": "^1.17",
         "wamania/php-stemmer": "^2.0"
diff --git a/src/constants.php b/src/constants.php
index 22dbd634a..5c0b28b3c 100644
--- a/src/constants.php
+++ b/src/constants.php
@@ -9,7 +9,7 @@
      *
      * @var string
      */
-    const VERSION = '1.3.0';
+    const VERSION = '1.3.1';
 
     /**
      * A small number used in substitution of 0.