diff --git a/requirements.txt b/requirements.txt
index 4cb21e39..73c324ab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,4 @@ pytest-trio==0.5.2; python_version>="3.6"
 pytest==4.5.0
 six==1.12.0
 tornado>=5.0
-trio==0.11.0; python_version>="3.6"
+trio==0.12.1; python_version>="3.6"