diff --git a/dev/create_certificates_mac.sh b/dev/create_certificates_mac.sh
index 108d82a5be9b..2c3ed5350573 100755
--- a/dev/create_certificates_mac.sh
+++ b/dev/create_certificates_mac.sh
@@ -2,14 +2,14 @@
 
 openssl req -x509 -newkey rsa:4096 -sha256 -nodes -keyout identity_server_dev.key -out identity_server_dev.crt \
     -subj "/CN=Bitwarden Identity Server Dev" -days 3650
-openssl pkcs12 -export -out identity_server_dev.pfx -inkey identity_server_dev.key -in identity_server_dev.crt \
+openssl pkcs12 -export -legacy -out identity_server_dev.pfx -inkey identity_server_dev.key -in identity_server_dev.crt \
     -certfile identity_server_dev.crt
 
 security import ./identity_server_dev.pfx -k ~/Library/Keychains/Login.keychain
 
 openssl req -x509 -newkey rsa:4096 -sha256 -nodes -keyout data_protection_dev.key -out data_protection_dev.crt \
     -subj "/CN=Bitwarden Data Protection Dev" -days 3650
-openssl pkcs12 -export -out data_protection_dev.pfx -inkey data_protection_dev.key -in data_protection_dev.crt \
+openssl pkcs12 -export -legacy -out data_protection_dev.pfx -inkey data_protection_dev.key -in data_protection_dev.crt \
     -certfile data_protection_dev.crt
 
 security import ./data_protection_dev.pfx -k ~/Library/Keychains/Login.keychain