diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 18be0cb..eb2cb7f 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -27,7 +27,6 @@ jobs:
       - name: Configure CMake
         run: >
           CC=clang cmake -B ${{env.build_dir}}
-          -DCOWL_CPP_TESTS=OFF
           -DCOWL_LTO=OFF
           -DCOWL_CLANG_TIDY=ON
           -DCMAKE_COMPILE_WARNING_AS_ERROR=ON
@@ -72,6 +71,7 @@ jobs:
           -DULIB_LIBRARY_TYPE=${{matrix.lib_type}}
           -DCOWL_LIBRARY_TYPE=${{matrix.lib_type}}
           -DCOWL_ENTITY_IDS=ON
+          -DCOWL_CPP_TESTS=ON
           -DCMAKE_COMPILE_WARNING_AS_ERROR=ON
           -DCMAKE_SYSTEM_VERSION=''
           -DCMAKE_BUILD_TYPE=${{env.build_config}}
diff --git a/lib/ulib b/lib/ulib
index 26c64f0..adf1697 160000
--- a/lib/ulib
+++ b/lib/ulib
@@ -1 +1 @@
-Subproject commit 26c64f049fa60ed99c969547b6d3681be5792b93
+Subproject commit adf169717a7c610ba3e27f720107e3ea7587d9dd
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 45e5ffa..712ecad 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -1,6 +1,6 @@
 # Configuration
 
-option(COWL_CPP_TESTS "Enable C++ tests" ON)
+option(COWL_CPP_TESTS "Enable C++ tests" OFF)
 
 # Output setup