diff --git a/requirements/requirements-prod.txt b/requirements/requirements-prod.txt
index 88277542f..5fef5ee63 100644
--- a/requirements/requirements-prod.txt
+++ b/requirements/requirements-prod.txt
@@ -511,9 +511,9 @@ icalendar==4.0.9 \
     --hash=sha256:cc73fa9c848744843046228cb66ea86cd8c18d73a51b140f7c003f760b84a997 \
     --hash=sha256:cf1446ffdf1b6ad469451a8966cfa7694f5fac796ac6fc7cd93e28c51a637d2c
     # via -r requirements-prod.in
-idna==3.7 \
-    --hash=sha256:028ff3aadf0609c1fd278d8ea3089299412a7a8b9bd005dd08b9f8285bcb5cfc \
-    --hash=sha256:82fee1fc78add43492d3a1898bfa6d8a904cc97d8427f683ed8e798d07761aa0
+idna==3.15 \
+    --hash=sha256:048adeaf8c2d788c40fee287673ccaa74c24ffd8dcf09ffa555a2fbb59f10ac8 \
+    --hash=sha256:ca962446ea538f7092a95e057da437618e886f4d349216d2b1e294abfdb65fdc
     # via
     #   flanker
     #   requests
diff --git a/requirements/requirements-test.txt b/requirements/requirements-test.txt
index 3dc0ade4e..917782237 100644
--- a/requirements/requirements-test.txt
+++ b/requirements/requirements-test.txt
@@ -190,9 +190,9 @@ hypothesis==6.113.0 \
     --hash=sha256:5556ac66fdf72a4ccd5d237810f7cf6bdcd00534a4485015ef881af26e20f7c7 \
     --hash=sha256:d539180eb2bb71ed28a23dfe94e67c851f9b09f3ccc4125afad43f17e32e2bad
     # via -r requirements-test.in
-idna==3.7 \
-    --hash=sha256:028ff3aadf0609c1fd278d8ea3089299412a7a8b9bd005dd08b9f8285bcb5cfc \
-    --hash=sha256:82fee1fc78add43492d3a1898bfa6d8a904cc97d8427f683ed8e798d07761aa0
+idna==3.15 \
+    --hash=sha256:048adeaf8c2d788c40fee287673ccaa74c24ffd8dcf09ffa555a2fbb59f10ac8 \
+    --hash=sha256:ca962446ea538f7092a95e057da437618e886f4d349216d2b1e294abfdb65fdc
     # via
     #   -c requirements-prod.txt
     #   requests