diff --git a/ooniapi/services/oonifindings/src/oonifindings/main.py b/ooniapi/services/oonifindings/src/oonifindings/main.py
index 90d7b3ec..935b469e 100644
--- a/ooniapi/services/oonifindings/src/oonifindings/main.py
+++ b/ooniapi/services/oonifindings/src/oonifindings/main.py
@@ -40,7 +40,6 @@ async def lifespan(app: FastAPI):
 app.add_middleware(
     CORSMiddleware,
     allow_origin_regex="^https://[-A-Za-z0-9]+(\.test)?\.ooni\.(org|io)$",
-    allow_origins=origins,
     allow_credentials=True,
     allow_methods=["*"],
     allow_headers=["*"],
diff --git a/ooniapi/services/oonimeasurements/src/oonimeasurements/main.py b/ooniapi/services/oonimeasurements/src/oonimeasurements/main.py
index 240c6a36..c7938b19 100644
--- a/ooniapi/services/oonimeasurements/src/oonimeasurements/main.py
+++ b/ooniapi/services/oonimeasurements/src/oonimeasurements/main.py
@@ -40,7 +40,6 @@ async def lifespan(app: FastAPI):
 )
 
 app.add_middleware(
-    allow_origins=origins,
     allow_origin_regex="^https://[-A-Za-z0-9]+(\.test)?\.ooni\.(org|io)$",
     allow_credentials=True,
     allow_methods=["*"],
diff --git a/ooniapi/services/ooniprobe/src/ooniprobe/main.py b/ooniapi/services/ooniprobe/src/ooniprobe/main.py
index 55c7fee1..6ec78008 100644
--- a/ooniapi/services/ooniprobe/src/ooniprobe/main.py
+++ b/ooniapi/services/ooniprobe/src/ooniprobe/main.py
@@ -40,7 +40,6 @@ async def lifespan(app: FastAPI):
 app.add_middleware(
     CORSMiddleware,
     allow_origin_regex="^https://[-A-Za-z0-9]+(\.test)?\.ooni\.(org|io)$",
-    allow_origins=origins,
     allow_credentials=True,
     allow_methods=["*"],
     allow_headers=["*"],