diff --git a/CHANGELOG.md b/CHANGELOG.md
index 06ba035..66f9c93 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [1.3.1](../../releases/tag/v1.3.1) - 2025-03-07
+
+### Added
+
+- Added STANDBY option to origin enum in actor run model
+
 ## [1.3.0](../../releases/tag/v1.3.0) - 2025-03-04
 
 ### Removed
diff --git a/pyproject.toml b/pyproject.toml
index 4b52d96..26d7e54 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "apify_shared"
-version = "1.3.0"
+version = "1.3.1"
 description = "Tools and constants shared across Apify projects."
 readme = "README.md"
 license = { text = "Apache Software License" }
diff --git a/src/apify_shared/consts.py b/src/apify_shared/consts.py
index e4668ec..a0aa8a0 100644
--- a/src/apify_shared/consts.py
+++ b/src/apify_shared/consts.py
@@ -268,6 +268,8 @@ class MetaOrigin(str, Enum):
     WEBHOOK = 'WEBHOOK'
     #: Job started by another actor run
     ACTOR = 'ACTOR'
+    #: Job started via Actor standby
+    STANDBY = 'STANDBY'
 
 
 INTEGER_ENV_VARS_TYPE = Literal[