diff --git a/templates/deployment.yaml b/templates/deployment.yaml
index 16f0a59..ea0735e 100644
--- a/templates/deployment.yaml
+++ b/templates/deployment.yaml
@@ -46,7 +46,8 @@ spec:
                 {{- end }}
                 {{- if .Values.externalDatabase.enabled }}
                 echo "Installing pdo_mysql for PHP 8.4 Alpine..."
-                apk add --no-cache php84-pdo_mysql
+                apk add --no-cache mysql-client mysql-dev
+                docker-php-ext-install pdo_mysql
                 {{- end }}
               )
               {{- end }}