diff --git a/CHANGELOG.md b/CHANGELOG.md
index b7c8ecf..34ac465 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,15 @@
 
 All notable changes to kalshi-sdk will be documented in this file.
 
+## 11.0.1 — 2026-08-09
+
+### Fixed
+
+- **`cryptography` dependency ceiling widened `<50` → `<51`** — clears
+  `PYSEC-2026-3552` (PKCS#7 decrypt oracle) by allowing cryptography 50.x.
+  The SDK RSA-PSS signing path is unaffected by that API; this unblocks
+  pip-audit on main and lets installers pull the fixed wheel.
+
 ## 11.0.0 — 2026-08-09
 
 Reconciles upstream OpenAPI **3.27.0** content drift, AsyncAPI trade payload
diff --git a/kalshi/__init__.py b/kalshi/__init__.py
index 562c6ad..57ff780 100644
--- a/kalshi/__init__.py
+++ b/kalshi/__init__.py
@@ -381,4 +381,4 @@
     "Withdrawal",
 ]
 
-__version__ = "11.0.0"
+__version__ = "11.0.1"
diff --git a/pyproject.toml b/pyproject.toml
index 48b8416..e40790e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "kalshi-sdk"
-version = "11.0.0"
+version = "11.0.1"
 description = "A professional Python SDK for the Kalshi prediction markets and Perps (margin) APIs"
 readme = "README.md"
 license = { text = "MIT" }
@@ -22,7 +22,7 @@ classifiers = [
 dependencies = [
     "httpx>=0.27,<1",
     "pydantic>=2.4,<3",
-    "cryptography>=43,<50",
+    "cryptography>=43,<51",
     "websockets>=14,<18",
     "typing-extensions>=4.5",
 ]