diff --git a/pyproject.toml b/pyproject.toml
index f507187ab..b79143434 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ dev = [
   "pytest-xdist==3.8.0",
   "pytest==9.0.1",
   "responses==0.25.8",
-  "ty==0.0.1a23",
+  "ty==0.0.1a27",
   "types-defusedxml==0.7.0.20250822",
   "types-oauthlib==3.3.0.20250822",
   "types-requests-oauthlib==2.0.0.20250809",
@@ -84,7 +84,7 @@ dev = [
   "pytest-xdist==3.8.0",
   "pytest==9.0.1",
   "responses==0.25.8",
-  "ty==0.0.1a23",
+  "ty==0.0.1a27",
   "types-defusedxml==0.7.0.20250822",
   "types-oauthlib==3.3.0.20250822",
   "types-requests-oauthlib==2.0.0.20250809",