diff --git a/.kokoro/requirements.txt b/.kokoro/requirements.txt
index cd183f4..cb85827 100644
--- a/.kokoro/requirements.txt
+++ b/.kokoro/requirements.txt
@@ -255,9 +255,9 @@ googleapis-common-protos==1.63.0 \
     --hash=sha256:17ad01b11d5f1d0171c06d3ba5c04c54474e883b66b949722b4938ee2694ef4e \
     --hash=sha256:ae45f75702f7c08b541f750854a678bd8f534a1a6bace6afe975f1d0a82d6632
     # via google-api-core
-idna==3.7 \
-    --hash=sha256:028ff3aadf0609c1fd278d8ea3089299412a7a8b9bd005dd08b9f8285bcb5cfc \
-    --hash=sha256:82fee1fc78add43492d3a1898bfa6d8a904cc97d8427f683ed8e798d07761aa0
+idna==3.15 \
+    --hash=sha256:048adeaf8c2d788c40fee287673ccaa74c24ffd8dcf09ffa555a2fbb59f10ac8 \
+    --hash=sha256:ca962446ea538f7092a95e057da437618e886f4d349216d2b1e294abfdb65fdc
     # via requests
 importlib-metadata==6.11.0 \
     --hash=sha256:1231cf92d825c9e03cfc4da076a16de6422c863558229ea0b22b675657463443 \