diff --git a/web/themes/contrib/civictheme/composer.dev.json b/web/themes/contrib/civictheme/composer.dev.json
index 84ae2445a..6aeaa88b7 100644
--- a/web/themes/contrib/civictheme/composer.dev.json
+++ b/web/themes/contrib/civictheme/composer.dev.json
@@ -13,7 +13,8 @@
     "config": {
         "allow-plugins": {
             "dealerdirect/phpcodesniffer-composer-installer": true,
-            "phpstan/extension-installer": true
+            "phpstan/extension-installer": true,
+            "tbachert/spi": true
         }
     },
     "extra": {