diff --git a/services/postgresflex/go.mod b/services/postgresflex/go.mod
index 14727e7be..46130c96a 100644
--- a/services/postgresflex/go.mod
+++ b/services/postgresflex/go.mod
@@ -4,7 +4,7 @@ go 1.25
 
 require (
 	github.com/google/go-cmp v0.7.0
-	github.com/stackitcloud/stackit-sdk-go/core v0.26.0
+	github.com/stackitcloud/stackit-sdk-go/core v0.27.0
 )
 
 require (
diff --git a/services/postgresflex/go.sum b/services/postgresflex/go.sum
index 3712a0c87..042f4a71a 100644
--- a/services/postgresflex/go.sum
+++ b/services/postgresflex/go.sum
@@ -4,5 +4,5 @@ github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/stackitcloud/stackit-sdk-go/core v0.26.0 h1:jQEb9gkehfp6VCP6TcYk7BI10cz4l0KM2L6hqYBH2QA=
-github.com/stackitcloud/stackit-sdk-go/core v0.26.0/go.mod h1:WU1hhxnjXw2EV7CYa1nlEvNpMiRY6CvmIOaHuL3pOaA=
+github.com/stackitcloud/stackit-sdk-go/core v0.27.0 h1:7lc6qStcFDFf8zHP4ORPa9joybw+Sa2LtB6BVjKQ+ek=
+github.com/stackitcloud/stackit-sdk-go/core v0.27.0/go.mod h1:WU1hhxnjXw2EV7CYa1nlEvNpMiRY6CvmIOaHuL3pOaA=
diff --git a/services/postgresflex/oas_commit b/services/postgresflex/oas_commit
index 3df2932d2..d5d15003c 100644
--- a/services/postgresflex/oas_commit
+++ b/services/postgresflex/oas_commit
@@ -1 +1 @@
-1fdef398bea59d49731a7d9ac39394ba5b6bb72c
+f385f3b154cb566b3c9e5156c29b28150f2af4a2
diff --git a/services/postgresflex/v3alpha1api/model_replicas.go b/services/postgresflex/v3alpha1api/model_replicas.go
index d8a967668..c30d008da 100644
--- a/services/postgresflex/v3alpha1api/model_replicas.go
+++ b/services/postgresflex/v3alpha1api/model_replicas.go
@@ -17,7 +17,7 @@ import (
 )
 
 // Replicas Deprecated: Use flavorId instead, -replica in flavorId means 3 replicas. How many replicas the instance should have.
-type Replicas uint32
+type Replicas int32
 
 // List of replicas
 const (
@@ -34,7 +34,7 @@ var AllowedReplicasEnumValues = []Replicas{
 }
 
 func (v *Replicas) UnmarshalJSON(src []byte) error {
-	var value uint32
+	var value int32
 	err := json.Unmarshal(src, &value)
 	if err != nil {
 		return err
@@ -53,7 +53,7 @@ func (v *Replicas) UnmarshalJSON(src []byte) error {
 
 // NewReplicasFromValue returns a pointer to a valid Replicas
 // for the value passed as argument, or an error if the value passed is not allowed by the enum
-func NewReplicasFromValue(v uint32) (*Replicas, error) {
+func NewReplicasFromValue(v int32) (*Replicas, error) {
 	ev := Replicas(v)
 	if ev.IsValid() {
 		return &ev, nil
diff --git a/services/postgresflex/v3alpha1api/model_replicas_opt.go b/services/postgresflex/v3alpha1api/model_replicas_opt.go
index 6e966deb1..c85dedfdb 100644
--- a/services/postgresflex/v3alpha1api/model_replicas_opt.go
+++ b/services/postgresflex/v3alpha1api/model_replicas_opt.go
@@ -17,7 +17,7 @@ import (
 )
 
 // ReplicasOpt Deprecated: Use flavorId instead, -replica in flavorId means 3 replicas. How many replicas the instance should have.
-type ReplicasOpt uint32
+type ReplicasOpt int32
 
 // List of replicas.opt
 const (
@@ -34,7 +34,7 @@ var AllowedReplicasOptEnumValues = []ReplicasOpt{
 }
 
 func (v *ReplicasOpt) UnmarshalJSON(src []byte) error {
-	var value uint32
+	var value int32
 	err := json.Unmarshal(src, &value)
 	if err != nil {
 		return err
@@ -53,7 +53,7 @@ func (v *ReplicasOpt) UnmarshalJSON(src []byte) error {
 
 // NewReplicasOptFromValue returns a pointer to a valid ReplicasOpt
 // for the value passed as argument, or an error if the value passed is not allowed by the enum
-func NewReplicasOptFromValue(v uint32) (*ReplicasOpt, error) {
+func NewReplicasOptFromValue(v int32) (*ReplicasOpt, error) {
 	ev := ReplicasOpt(v)
 	if ev.IsValid() {
 		return &ev, nil