diff --git a/.github/workflows/cargo_llvm_cov.yml b/.github/workflows/cargo_llvm_cov.yml
index e26cba773e5..fb157913f9f 100644
--- a/.github/workflows/cargo_llvm_cov.yml
+++ b/.github/workflows/cargo_llvm_cov.yml
@@ -60,14 +60,14 @@ jobs:
           IOTA_SKIP_SIMTESTS=1 cargo +nightly llvm-cov --ignore-run-fail --branch --html nextest -vv -E '!package(iota-bridge)'
 
       - name: Pack report
-        run: cd target/llvm-cov && tar -czvf nextest_coverage_report.tgz ./html/
+        run: cd target/llvm-cov/html && tar -czvf ../nextest_coverage_report.tgz ./
 
       # TEMP
       - name: Upload report
         uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # pin@v4
         with:
           name: nextest_coverage_report.tgz
-          path: ./nextest_coverage_report.tgz
+          path: ./target/llvm-cov/nextest_coverage_report.tgz
           if-no-files-found: error
           retention-days: 1
 
@@ -77,13 +77,13 @@ jobs:
           ./scripts/simtest/codecov.sh
 
       - name: Pack report (simtest)
-        run: cd target/llvm-cov && tar -czvf simtest_coverage_report.tgz ./html/
+        run: cd target/llvm-cov/html && tar -czvf ../simtest_coverage_report.tgz ./
 
       # TEMP
       - name: Upload report (simtest)
         uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # pin@v4
         with:
           name: simtest_coverage_report.tgz
-          path: ./simtest_coverage_report.tgz
+          path: ./target/llvm-cov/simtest_coverage_report.tgz
           if-no-files-found: error
           retention-days: 1
diff --git a/scripts/simtest/codecov.sh b/scripts/simtest/codecov.sh
index 6ea0f24a891..0d628954879 100755
--- a/scripts/simtest/codecov.sh
+++ b/scripts/simtest/codecov.sh
@@ -18,7 +18,7 @@ export SIMTEST_STATIC_INIT_MOVE=$root_dir"/examples/move/basics"
 
 cargo llvm-cov clean
 
-MSIM_WATCHDOG_TIMEOUT_MS=60000 MSIM_TEST_SEED=1 cargo llvm-cov --ignore-run-fail --html nextest --cargo-profile simulator
+MSIM_WATCHDOG_TIMEOUT_MS=60000 MSIM_TEST_SEED=1 cargo +nightly llvm-cov --ignore-run-fail --branch --html nextest --cargo-profile simulator
 
 # remove the patch
 git checkout .cargo/config Cargo.toml Cargo.lock