diff --git a/.github/actions/build-macos-artifacts/action.yml b/.github/actions/build-macos-artifacts/action.yml
index 2caefe1c382..2affb5b94f7 100644
--- a/.github/actions/build-macos-artifacts/action.yml
+++ b/.github/actions/build-macos-artifacts/action.yml
@@ -64,6 +64,7 @@ runs:
       shell: bash
       env:
         CARGO_BUILD_RUSTFLAGS: "-Clink-arg=-Wl,-ld_classic"
+        RUST_MIN_STACK: 8388608 # 8 MiB, aligned with Rust CI and release tests.
         SQLNESS_OPTS: "--preserve-state"
       run: |
         make test sqlness-test
diff --git a/.github/workflows/nightly-ci.yml b/.github/workflows/nightly-ci.yml
index f7f955233a1..15f8f505bea 100644
--- a/.github/workflows/nightly-ci.yml
+++ b/.github/workflows/nightly-ci.yml
@@ -157,6 +157,7 @@ jobs:
         env:
           CARGO_BUILD_RUSTFLAGS: "-C linker=lld-link"
           RUST_BACKTRACE: 1
+          RUST_MIN_STACK: 8388608 # 8 MiB, aligned with Rust CI and release tests.
           CARGO_INCREMENTAL: 0
           GT_S3_BUCKET: ${{ vars.AWS_CI_TEST_BUCKET }}
           GT_S3_ACCESS_KEY_ID: ${{ secrets.AWS_CI_TEST_ACCESS_KEY_ID }}