1 files changed, 2 insertions, 0 deletions
diff --git a/tox.ini b/tox.ini
index 944ef852..ce80b184 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,6 +8,8 @@ deps =
     coverage
     ./vectors
 passenv = ARCHFLAGS LDFLAGS CFLAGS INCLUDE LIB LD_LIBRARY_PATH USERNAME
+setenv =
+    CRYPTOGRAPHY_ALLOW_OPENSSL_100=1
 commands =
     pip list
     # We use parallel mode and then combine here so that coverage.py will take