1 files changed, 1 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index 0b22f32..d741610 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,6 +13,7 @@ changedir = {envtmpdir}
 passenv = CODECOV* CI
 setenv =
     JSON_SCHEMA_TEST_SUITE = {toxinidir}/json
+    coverage,codecov: PYTHONWARNINGS = error,ignore:Creating a LegacyVersion:DeprecationWarning,
 
     coverage,codecov: MAYBE_COVERAGE = coverage run -m
     coverage,codecov: COVERAGE_RCFILE={toxinidir}/.coveragerc