diff --git a/htdocs/core/db/mysqli.class.php b/htdocs/core/db/mysqli.class.php
index 541b1728753..36974d29218 100644
--- a/htdocs/core/db/mysqli.class.php
+++ b/htdocs/core/db/mysqli.class.php
@@ -279,7 +279,7 @@ class DoliDBMysqli extends DoliDB
 		}
 
 		if (!empty($dolibarr_main_db_readonly)) {
-			if (preg_match('/^(INSERT|UPDATE|DELETE|CREATE|ALTER|TRUNCATE|DROP)/i', $query)) {
+			if (preg_match('/^(INSERT|UPDATE|REPLACE|DELETE|CREATE|ALTER|TRUNCATE|DROP)/i', $query)) {
 				$this->lasterror = 'Application in read-only mode';
 				$this->lasterrno = 'APPREADONLY';
 				$this->lastquery = $query;
diff --git a/htdocs/core/db/pgsql.class.php b/htdocs/core/db/pgsql.class.php
index 866ae2edc88..0513226ac31 100644
--- a/htdocs/core/db/pgsql.class.php
+++ b/htdocs/core/db/pgsql.class.php
@@ -532,7 +532,7 @@ class DoliDBPgsql extends DoliDB
 		}
 
 		if (!empty($dolibarr_main_db_readonly)) {
-			if (preg_match('/^(INSERT|UPDATE|DELETE|CREATE|ALTER|TRUNCATE|DROP)/i', $query)) {
+			if (preg_match('/^(INSERT|UPDATE|REPLACE|DELETE|CREATE|ALTER|TRUNCATE|DROP)/i', $query)) {
 				$this->lasterror = 'Application in read-only mode';
 				$this->lasterrno = 'APPREADONLY';
 				$this->lastquery = $query;
diff --git a/htdocs/core/db/sqlite3.class.php b/htdocs/core/db/sqlite3.class.php
index 9315320bf79..395155973be 100644
--- a/htdocs/core/db/sqlite3.class.php
+++ b/htdocs/core/db/sqlite3.class.php
@@ -456,7 +456,7 @@ class DoliDBSqlite3 extends DoliDB
 		}
 
 		if (!empty($dolibarr_main_db_readonly)) {
-			if (preg_match('/^(INSERT|UPDATE|DELETE|CREATE|ALTER|TRUNCATE|DROP)/i', $query)) {
+			if (preg_match('/^(INSERT|UPDATE|REPLACE|DELETE|CREATE|ALTER|TRUNCATE|DROP)/i', $query)) {
 				$this->lasterror = 'Application in read-only mode';
 				$this->lasterrno = 'APPREADONLY';
 				$this->lastquery = $query;