try

Author: sentrivana

scripts/populate_tox/config.py

@@ -299,7 +299,7 @@
                 "pytest-asyncio",
                 "werkzeug",
             ],
-            "<=0.18": [
+            "<=0.19": [
                 "blinker<1.6",
                 "jinja2<3.1.0",
                 "Werkzeug<2.1.0",

tox.ini

@@ -723,6 +723,10 @@ deps =
     quart-v0.17.0: jinja2<3.1.0
     quart-v0.17.0: Werkzeug<2.1.0
     quart-v0.17.0: hypercorn<0.15.0
+    quart-v0.18.4: blinker<1.6
+    quart-v0.18.4: jinja2<3.1.0
+    quart-v0.18.4: Werkzeug<2.1.0
+    quart-v0.18.4: hypercorn<0.15.0
     py3.8-quart: taskgroup==0.0.0a4
 
     starlite-v1.48.1: starlite==1.48.1