diff --git a/kokoro/nightly.sh b/kokoro/nightly.sh
index 94946020e..1423f4f44 100755
--- a/kokoro/nightly.sh
+++ b/kokoro/nightly.sh
@@ -21,12 +21,11 @@ set -e
 set -x
 
 # Run the normal build, but replace the default virtual devices with physical ones.
-# hammerhead  | Nexus 5       | API 23 | Phone
 # walleye     | Pixel 2       | API 27 | Phone
 # gts4lltevzw | Galaxy Tab S4 | API 28 | Tablet
 # a10         | Samsung A10   | API 29 | Phone
 # redfin      | Pixel 5e      | API 30 | Phone
 # oriole      | Pixel 6       | API 31 | Phone
-bash $KOKORO_ARTIFACTS_DIR/git/nowinandroid/kokoro/build.sh "hammerhead,walleye,gts4lltevzw,a10,redfin,oriole" "23,27,28,29,30,31"
+bash $KOKORO_ARTIFACTS_DIR/git/nowinandroid/kokoro/build.sh "walleye,gts4lltevzw,a10,redfin,oriole" "27,28,29,30,31"
 
 exit $?