diff --git a/package.json b/package.json
index c14866dbb..c07a2ddcf 100644
--- a/package.json
+++ b/package.json
@@ -58,8 +58,8 @@
     "prebuildify": "cd node && prebuildify -t 16.13.0 --napi --strip --postinstall \"node scripts/postinstall.js --prebuild\"",
     "test": "npm run test:lint && npm run test:mocha",
     "test:lint": "npm run lint",
-    "test:mocha": "mocha -r esm node/test/test.js --growl --reporter=spec"
+    "test:mocha": "mocha -r esm node/test/test.js --growl --reporter=spec --bail"
   },
   "types": "node/dist/index.d.ts",
   "version": "1.86.0"
-}
\ No newline at end of file
+}
diff --git a/python/tox.ini b/python/tox.ini
index 8aa0896c7..8a13de597 100644
--- a/python/tox.ini
+++ b/python/tox.ini
@@ -8,7 +8,7 @@ envlist =
 
 [testenv]
 commands = 
-    pytest -n6 --extra-info --reruns 2 --reruns-delay 5 -v -rsXx --ignored --strict-tls {posargs: tests examples}
+    pytest -n6 --extra-info --exitfirst -v -rsXx --ignored --strict-tls {posargs: tests examples}
     python tests/package_wheels.py {toxworkdir}/wheelhouse
 passenv = 
     TRAVIS 
@@ -19,7 +19,6 @@ passenv =
     RUSTC_WRAPPER
 deps = 
     pytest
-    pytest-rerunfailures
     pytest-timeout
     pytest-xdist
     pdbpp