diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6380619..99ee243 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -78,11 +78,16 @@ jobs:
 
       #####################################
       # [Optional] Run Tests
+      # NOTE: -LE LargeStackRequired is used to skip
+      #       running tests on GitHub CI environment that
+      #       has limited stack allowed.
+      #       The fbracket-depth passes outside of GitHub
+      #       but fails inside Github CI
       #####################################
       - name: Test
         run: |
             cd build/castxml-prefix/src/castxml-build
-            ctest --output-on-failure
+            ctest --output-on-failure -LE LargeStackRequired
 
       #####################################
       # Package the resulting castxml binary
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 27a813c..af41f62 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -137,8 +137,7 @@ endif()
 if(CMAKE_COMPILER_IS_GNUCXX AND CMAKE_SYSTEM_NAME MATCHES "Linux")
   set(linux_args "-DCMAKE_CXX_FLAGS:STRING=-static-libstdc++")
 endif()
-# 2025-12-11 master
-set(CastXML_GIT_TAG bca6af13daf298f6d63bf2e4d4488c11c7e99b22  CACHE STRING "CastXML Git revision.")
+set(CastXML_GIT_TAG "9864b1ee75ff08bda40dee12b8a339237fbac97d" CACHE STRING "CastXML Git revision." FORCE)
 ExternalProject_Add(castxml
   GIT_REPOSITORY https://github.com/CastXML/CastXML.git
   GIT_TAG ${CastXML_GIT_TAG}