diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 833759e..1c69739 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "3.1.0"
+  ".": "3.1.1"
 } 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 31f8625..3d01c7a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [3.1.1](https://github.com/growthbook/growthbook-python/compare/v3.1.0...v3.1.1) (2026-09-08)
+
+
+### Bug Fixes
+
+* empty variations or short meta in a rule crashed evaluation with IndexError - Merge pull request [#137](https://github.com/growthbook/growthbook-python/issues/137) from growthbook/fix/empty-variations-index-error ([9af3be5](https://github.com/growthbook/growthbook-python/commit/9af3be5aa44751ea87a5776bb1ba9c4181e86215))
+
 ## [3.1.0](https://github.com/growthbook/growthbook-python/compare/v3.0.0...v3.1.0) (2026-09-05)
 
 ### Features
diff --git a/growthbook/__init__.py b/growthbook/__init__.py
index 36708a9..586b1e8 100644
--- a/growthbook/__init__.py
+++ b/growthbook/__init__.py
@@ -109,5 +109,5 @@
 ]
 
 # x-release-please-start-version
-__version__ = "3.1.0"
+__version__ = "3.1.1"
 # x-release-please-end
diff --git a/setup.cfg b/setup.cfg
index 0765795..9af2ab6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.1.0
+current_version = 3.1.1
 commit = True
 tag = True