diff --git a/extensions/inference-cortex-extension/download.bat b/extensions/inference-cortex-extension/download.bat
index 0e7eef20e..a167a9cde 100644
--- a/extensions/inference-cortex-extension/download.bat
+++ b/extensions/inference-cortex-extension/download.bat
@@ -2,7 +2,7 @@
 set BIN_PATH=./bin
 set SHARED_PATH=./../../electron/shared
 set /p CORTEX_VERSION=<./bin/version.txt
-set ENGINE_VERSION=0.1.42
+set ENGINE_VERSION=0.1.42-hotfix
 
 @REM Download cortex.llamacpp binaries
 set DOWNLOAD_URL=https://github.com/janhq/cortex.llamacpp/releases/download/v%ENGINE_VERSION%/cortex.llamacpp-%ENGINE_VERSION%-windows-amd64
diff --git a/extensions/inference-cortex-extension/download.sh b/extensions/inference-cortex-extension/download.sh
index b0f3b36e3..f5db76030 100755
--- a/extensions/inference-cortex-extension/download.sh
+++ b/extensions/inference-cortex-extension/download.sh
@@ -2,7 +2,7 @@
 
 # Read CORTEX_VERSION
 CORTEX_VERSION=$(cat ./bin/version.txt)
-ENGINE_VERSION=0.1.42
+ENGINE_VERSION=0.1.42-hotfix
 CORTEX_RELEASE_URL="https://github.com/janhq/cortex.cpp/releases/download"
 ENGINE_DOWNLOAD_URL="https://github.com/janhq/cortex.llamacpp/releases/download/v${ENGINE_VERSION}/cortex.llamacpp-${ENGINE_VERSION}"
 CUDA_DOWNLOAD_URL="https://github.com/janhq/cortex.llamacpp/releases/download/v${ENGINE_VERSION}"
diff --git a/extensions/inference-cortex-extension/rollup.config.ts b/extensions/inference-cortex-extension/rollup.config.ts
index 266281a75..6cfe982b4 100644
--- a/extensions/inference-cortex-extension/rollup.config.ts
+++ b/extensions/inference-cortex-extension/rollup.config.ts
@@ -120,7 +120,7 @@ export default [
         SETTINGS: JSON.stringify(defaultSettingJson),
         CORTEX_API_URL: JSON.stringify('http://127.0.0.1:39291'),
         CORTEX_SOCKET_URL: JSON.stringify('ws://127.0.0.1:39291'),
-        CORTEX_ENGINE_VERSION: JSON.stringify('v0.1.42'),
+        CORTEX_ENGINE_VERSION: JSON.stringify('v0.1.42-hotfix'),
       }),
       // Allow json resolution
       json(),