diff --git a/label_studio/core/settings/base.py b/label_studio/core/settings/base.py
index 4c91083ec1f8..9ccc80e4c9cf 100644
--- a/label_studio/core/settings/base.py
+++ b/label_studio/core/settings/base.py
@@ -413,6 +413,7 @@
     ],
     'CONTACT': {'url': 'https://labelstud.io'},
     'X_LOGO': {'url': '../../static/icons/logo-black.svg'},
+    'ENUM_ADD_EXPLICIT_BLANK_NULL_CHOICE': False,
 }
 
 SENTRY_DSN = get_env('SENTRY_DSN', None)
diff --git a/poetry.lock b/poetry.lock
index aeba24c9ba05..ce6368a64d79 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.2.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.1.4 and should not be changed by hand.
 
 [[package]]
 name = "annotated-types"
@@ -2131,7 +2131,7 @@ optional = false
 python-versions = ">=3.9,<4"
 groups = ["main"]
 files = [
-    {file = "9b72a9525c98ecbf36c816d30365380033ee80e1.zip", hash = "sha256:95d6b0b968a779b6216a6c5bf94ae7461c3decf53066ebeee1442627f7ff51a1"},
+    {file = "fcfbf04524c72a1a834fccc23b6de433e1b87dc7.zip", hash = "sha256:8784e07cfa7074472c2cbbd1753afdb3cfe155168d951332667804d947c4b903"},
 ]
 
 [package.dependencies]
@@ -2159,7 +2159,7 @@ xmljson = "0.2.1"
 
 [package.source]
 type = "url"
-url = "https://github.com/HumanSignal/label-studio-sdk/archive/9b72a9525c98ecbf36c816d30365380033ee80e1.zip"
+url = "https://github.com/HumanSignal/label-studio-sdk/archive/fcfbf04524c72a1a834fccc23b6de433e1b87dc7.zip"
 
 [[package]]
 name = "launchdarkly-server-sdk"
@@ -5105,4 +5105,4 @@ uwsgi = ["pyuwsgi", "uwsgitop"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10,<4"
-content-hash = "46f607014fe7c51f64b807475fac8edd5a2c7211d81da09fd1c99cf72f5a5b60"
+content-hash = "88983e4e46c24758b0430dea443d3a38c262fd4bb5c83d5d6bebe294f269ee11"
diff --git a/pyproject.toml b/pyproject.toml
index 56706357fd42..169189f9c3e3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -74,7 +74,7 @@ dependencies = [
     "tldextract (>=5.1.3)",
     "uuid-utils (>=0.11.0,<1.0.0)",
     ## HumanSignal repo dependencies :start
-    "label-studio-sdk @ https://github.com/HumanSignal/label-studio-sdk/archive/9b72a9525c98ecbf36c816d30365380033ee80e1.zip",
+    "label-studio-sdk @ https://github.com/HumanSignal/label-studio-sdk/archive/fcfbf04524c72a1a834fccc23b6de433e1b87dc7.zip",
     ## HumanSignal repo dependencies :end
 ]