diff --git a/.github/workflows/build_orca.yml b/.github/workflows/build_orca.yml
index 094a722013..6b09f7ffab 100644
--- a/.github/workflows/build_orca.yml
+++ b/.github/workflows/build_orca.yml
@@ -122,6 +122,8 @@ jobs:
           security create-keychain -p $KEYCHAIN_PASSWORD $KEYCHAIN_PATH
           security set-keychain-settings -lut 21600 $KEYCHAIN_PATH
           security unlock-keychain -p $KEYCHAIN_PASSWORD $KEYCHAIN_PATH
+          # Set the temporary keychain as the default to prevent codesign from accessing the locked login keychain
+          security default-keychain -s "$KEYCHAIN_PATH"
           security import $CERTIFICATE_PATH -P $P12_PASSWORD -A -t cert -f pkcs12 -k $KEYCHAIN_PATH
           security list-keychain -d user -s $KEYCHAIN_PATH
           security set-key-partition-list -S apple-tool:,apple:,codesign: -s -k $P12_PASSWORD $KEYCHAIN_PATH