diff --git a/extensions/devservices/postgresql/src/main/java/io/quarkus/devservices/postgresql/deployment/PostgresqlDevServicesProcessor.java b/extensions/devservices/postgresql/src/main/java/io/quarkus/devservices/postgresql/deployment/PostgresqlDevServicesProcessor.java
index 22b4f6d27ee2e..ce05c7cc65552 100644
--- a/extensions/devservices/postgresql/src/main/java/io/quarkus/devservices/postgresql/deployment/PostgresqlDevServicesProcessor.java
+++ b/extensions/devservices/postgresql/src/main/java/io/quarkus/devservices/postgresql/deployment/PostgresqlDevServicesProcessor.java
@@ -37,6 +37,9 @@ public class PostgresqlDevServicesProcessor {
 
     private static final Logger LOG = Logger.getLogger(PostgresqlDevServicesProcessor.class);
 
+    private static final String MAX_PREPARED_TRANSACTIONS = "max_prepared_transactions";
+    private static final String DEFAULT_MAX_PREPARED_TRANSACTIONS = "--" + MAX_PREPARED_TRANSACTIONS + "=100";
+
     @BuildStep
     ConsoleCommandBuildItem psqlCommand(DevServicesLauncherConfigResultBuildItem devServices) {
         return new ConsoleCommandBuildItem(new PostgresCommand(devServices));
@@ -75,7 +78,16 @@ public RunningDevServicesDatasource startDatabase(Optional<String> username, Opt
                 container.withEnv(containerConfig.getContainerEnv());
 
                 containerConfig.getAdditionalJdbcUrlProperties().forEach(container::withUrlParam);
-                containerConfig.getCommand().ifPresent(container::setCommand);
+                String augmentedCommand;
+                if (containerConfig.getCommand().isPresent()) {
+                    String originalCommand = containerConfig.getCommand().get();
+                    augmentedCommand = originalCommand.contains(MAX_PREPARED_TRANSACTIONS) ? originalCommand
+                            : originalCommand + " " + DEFAULT_MAX_PREPARED_TRANSACTIONS;
+                } else {
+                    augmentedCommand = DEFAULT_MAX_PREPARED_TRANSACTIONS;
+                }
+                container.setCommand(augmentedCommand);
+
                 containerConfig.getInitScriptPath().ifPresent(container::withInitScript);
                 if (containerConfig.isShowLogs()) {
                     container.withLogConsumer(new JBossLoggingConsumer(LOG));