diff --git a/io.catenax.essincident/2.0.0/EssIncident.ttl b/io.catenax.essincident/2.0.0/EssIncident.ttl
index dfd92111..dac47dc8 100644
--- a/io.catenax.essincident/2.0.0/EssIncident.ttl
+++ b/io.catenax.essincident/2.0.0/EssIncident.ttl
@@ -324,7 +324,7 @@
 :BpnLConstraint a samm-c:RegularExpressionConstraint ;
    samm:preferredName "BPNL Constraint"@en ;
    samm:description "Business Partner L Number Contraint"@en ;
-   samm:value "^(BPN)(L)(\\\\d{8})([a-zA-Z0-9]{4})$" .
+   samm:value "^(BPN)(L)(\\d{8})([a-zA-Z0-9]{4})$" .
 
 :BpnSCharacteristic a samm:Characteristic ;
    samm:preferredName "BPNS Characteristic"@en ;
@@ -334,7 +334,7 @@
 :BpnSConstraint a samm-c:RegularExpressionConstraint ;
    samm:preferredName "BPNS Constraint"@en ;
    samm:description "Business Partner S Number Constraint"@en ;
-   samm:value "^(BPN)(S)(\\\\d{8})([a-zA-Z0-9]{4})$" .
+   samm:value "^(BPN)(S)(\\d{8})([a-zA-Z0-9]{4})$" .
 
 :BpnACharacteristic a samm:Characteristic ;
    samm:preferredName "BPNA Characteristic"@en ;
@@ -344,7 +344,7 @@
 :BpnAConstraint a samm-c:RegularExpressionConstraint ;
    samm:preferredName "BPNA Constraint"@en ;
    samm:description "Business Partner A Number Constraint"@en ;
-   samm:value "^(BPN)(A)(\\\\d{8})([a-zA-Z0-9]{4})$" .
+   samm:value "^(BPN)(A)(\\d{8})([a-zA-Z0-9]{4})$" .
 
 :EssOriginatorCoordinatesEntity a samm:Entity ;
    samm:preferredName "ESS Originator Coordinates Entity"@en ;
@@ -354,7 +354,7 @@
 :ContactMailConstraint a samm-c:RegularExpressionConstraint ;
    samm:preferredName "Contact Mail Constraint"@en ;
    samm:description "Regular expression for a contact mail address."@en ;
-   samm:value "^[a-zA-Z0-9.!#$%&?*+\\\\/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\\\\.[a-zA-Z0-9-]+)*$" .
+   samm:value "^[a-zA-Z0-9.!#$%&?*+\\/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\\.[a-zA-Z0-9-]+)*$" .
 
 :longitude a samm:Property ;
    samm:preferredName "Longitude"@en ;