diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f54ae671..55b2cd65 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -120,10 +120,8 @@ jobs:
         shell: bash
         run: |
           jobs="gcc/debug gcc/release clang/debug clang/release"
-          for ((i = 0; i < 5; i++)); do
-            echo "===== parallel jobs: $jobs"
-            parallel -kv --lb 'cd build/extra/{} && bash ../../../../misc/testsuite/mimic_ctest_sigsegv.sh' ::: $jobs
-          done
+          echo "===== parallel jobs: $jobs"
+          parallel -kv --lb 'cd build/extra/{} && bash ../../../../misc/testsuite/mimic_ctest_sigsegv.sh' ::: $jobs
       - name: Run ctest tests
         run: |
           jobs="gcc/debug gcc/release clang/debug clang/release"
diff --git a/misc/testsuite/mimic_ctest.sh b/misc/testsuite/mimic_ctest.sh
index 2881ff4b..861ef1ff 100755
--- a/misc/testsuite/mimic_ctest.sh
+++ b/misc/testsuite/mimic_ctest.sh
@@ -170,6 +170,9 @@ if [[ $UPX_CONFIG_DISABLE_EXHAUSTIVE_TESTS != ON ]]; then
                 cmp -s upx-unpacked${exe} upx-unpacked-${s}${exe}
                 if [[ $UPX_CONFIG_DISABLE_RUN_PACKED_TEST != ON ]]; then
                     "${emu[@]}" ./upx-packed-${s}${exe} --version-short
+                    for ((i = 0; i < 10; i++)); do
+                        "${emu[@]}" ./upx-packed-${s}${exe} --version-short >/dev/null
+                    done
                 fi
             done
         done