diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e4ccb478..d0849ce3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -419,6 +419,7 @@ jobs:
             -DLIBUNWIND_USE_COMPILER_RT=YES `
             -DLIBCXXABI_USE_LLVM_UNWINDER=YES `
             -DLIBCXX_EXTRA_SITE_DEFINES="__USE_MINGW_ANSI_STDIO=1;TEST_IS_EXECUTED_IN_A_SLOW_ENVIRONMENT" `
+            -DLIBCXX_TEST_PARAMS="large_tests=False" `
             -DLLVM_LIT_ARGS="-v --time-tests"
           ninja
           ninja check-cxx check-cxxabi check-unwind
diff --git a/.github/workflows/test-libcxx.yml b/.github/workflows/test-libcxx.yml
index 17d7b620..04cc17a6 100644
--- a/.github/workflows/test-libcxx.yml
+++ b/.github/workflows/test-libcxx.yml
@@ -95,6 +95,7 @@ jobs:
             -DLIBUNWIND_USE_COMPILER_RT=YES `
             -DLIBCXXABI_USE_LLVM_UNWINDER=YES `
             -DLIBCXX_EXTRA_SITE_DEFINES="__USE_MINGW_ANSI_STDIO=1;TEST_IS_EXECUTED_IN_A_SLOW_ENVIRONMENT" `
+            -DLIBCXX_TEST_PARAMS="large_tests=False" `
             -DLLVM_LIT_ARGS="-v --time-tests"
           ninja
           ninja check-cxx check-cxxabi check-unwind