diff --git a/api/v1/checluster_types.go b/api/v1/checluster_types.go
index 84a03c1f4..6fc693683 100644
--- a/api/v1/checluster_types.go
+++ b/api/v1/checluster_types.go
@@ -391,6 +391,10 @@ type CheClusterSpecDB struct {
 	// PostgreSQL container custom settings
 	// +optional
 	ChePostgresContainerResources ResourcesCustomSettings `json:"chePostgresContainerResources,omitempty"`
+	// Size of the persistent volume claim for database. Defaults to `1Gi`.
+	// To update pvc storageclass that provisions it must support resize when Eclipse Che has been already deployed.
+	// +optional
+	PvcClaimSize string `json:"pvcClaimSize,omitempty"`
 }
 
 // +k8s:openapi-gen=true
diff --git a/bundle/next-all-namespaces/eclipse-che-preview-openshift/manifests/che-operator.clusterserviceversion.yaml b/bundle/next-all-namespaces/eclipse-che-preview-openshift/manifests/che-operator.clusterserviceversion.yaml
index 441413c76..061119ea6 100644
--- a/bundle/next-all-namespaces/eclipse-che-preview-openshift/manifests/che-operator.clusterserviceversion.yaml
+++ b/bundle/next-all-namespaces/eclipse-che-preview-openshift/manifests/che-operator.clusterserviceversion.yaml
@@ -126,7 +126,7 @@ metadata:
     operators.operatorframework.io/project_layout: go.kubebuilder.io/v3
     repository: https://github.com/eclipse-che/che-operator
     support: Eclipse Foundation
-  name: eclipse-che-preview-openshift.v7.40.0-379.next-all-namespaces
+  name: eclipse-che-preview-openshift.v7.40.0-380.next-all-namespaces
   namespace: placeholder
 spec:
   apiservicedefinitions: {}
@@ -1439,4 +1439,4 @@ spec:
   maturity: stable
   provider:
     name: Eclipse Foundation
-  version: 7.40.0-379.next-all-namespaces
+  version: 7.40.0-380.next-all-namespaces
diff --git a/bundle/next-all-namespaces/eclipse-che-preview-openshift/manifests/org_v1_che_crd.yaml b/bundle/next-all-namespaces/eclipse-che-preview-openshift/manifests/org_v1_che_crd.yaml
index 48f9f8485..11bb781e0 100644
--- a/bundle/next-all-namespaces/eclipse-che-preview-openshift/manifests/org_v1_che_crd.yaml
+++ b/bundle/next-all-namespaces/eclipse-che-preview-openshift/manifests/org_v1_che_crd.yaml
@@ -363,6 +363,11 @@ spec:
                         values are: `9.6` and `13.3`. Migrate your PostgreSQL database
                         to switch from one version to another.'
                       type: string
+                    pvcClaimSize:
+                      description: Size of the persistent volume claim for database.
+                        Defaults to `1Gi`. To update pvc storageclass that provisions
+                        it must support resize when Eclipse Che has been already deployed.
+                      type: string
                   type: object
                 devWorkspace:
                   description: DevWorkspace operator configuration
diff --git a/bundle/next/eclipse-che-preview-kubernetes/manifests/che-operator.clusterserviceversion.yaml b/bundle/next/eclipse-che-preview-kubernetes/manifests/che-operator.clusterserviceversion.yaml
index 86c39cc4a..a0032ae5c 100644
--- a/bundle/next/eclipse-che-preview-kubernetes/manifests/che-operator.clusterserviceversion.yaml
+++ b/bundle/next/eclipse-che-preview-kubernetes/manifests/che-operator.clusterserviceversion.yaml
@@ -133,7 +133,7 @@ metadata:
     operators.operatorframework.io/project_layout: go.kubebuilder.io/v3
     repository: https://github.com/eclipse-che/che-operator
     support: Eclipse Foundation
-  name: eclipse-che-preview-kubernetes.v7.40.0-379.next
+  name: eclipse-che-preview-kubernetes.v7.40.0-380.next
   namespace: placeholder
 spec:
   apiservicedefinitions: {}
@@ -1406,4 +1406,4 @@ spec:
   maturity: stable
   provider:
     name: Eclipse Foundation
-  version: 7.40.0-379.next
+  version: 7.40.0-380.next
diff --git a/bundle/next/eclipse-che-preview-kubernetes/manifests/org_v1_che_crd.yaml b/bundle/next/eclipse-che-preview-kubernetes/manifests/org_v1_che_crd.yaml
index 8bedb5c44..70d5f5202 100644
--- a/bundle/next/eclipse-che-preview-kubernetes/manifests/org_v1_che_crd.yaml
+++ b/bundle/next/eclipse-che-preview-kubernetes/manifests/org_v1_che_crd.yaml
@@ -217,6 +217,9 @@ spec:
                   postgresVersion:
                     description: 'Indicates a PostgreSQL version image to use. Allowed values are: `9.6` and `13.3`. Migrate your PostgreSQL database to switch from one version to another.'
                     type: string
+                  pvcClaimSize:
+                    description: Size of the persistent volume claim for database. Defaults to `1Gi`. To update pvc storageclass that provisions it must support resize when Eclipse Che has been already deployed.
+                    type: string
                 type: object
               devWorkspace:
                 description: DevWorkspace operator configuration
diff --git a/bundle/next/eclipse-che-preview-openshift/manifests/che-operator.clusterserviceversion.yaml b/bundle/next/eclipse-che-preview-openshift/manifests/che-operator.clusterserviceversion.yaml
index 36290c3c2..178a7d2f8 100644
--- a/bundle/next/eclipse-che-preview-openshift/manifests/che-operator.clusterserviceversion.yaml
+++ b/bundle/next/eclipse-che-preview-openshift/manifests/che-operator.clusterserviceversion.yaml
@@ -126,7 +126,7 @@ metadata:
     operators.operatorframework.io/project_layout: go.kubebuilder.io/v3
     repository: https://github.com/eclipse-che/che-operator
     support: Eclipse Foundation
-  name: eclipse-che-preview-openshift.v7.40.0-379.next
+  name: eclipse-che-preview-openshift.v7.40.0-380.next
   namespace: placeholder
 spec:
   apiservicedefinitions: {}
@@ -1439,4 +1439,4 @@ spec:
   maturity: stable
   provider:
     name: Eclipse Foundation
-  version: 7.40.0-379.next
+  version: 7.40.0-380.next
diff --git a/bundle/next/eclipse-che-preview-openshift/manifests/org_v1_che_crd.yaml b/bundle/next/eclipse-che-preview-openshift/manifests/org_v1_che_crd.yaml
index 48f9f8485..11bb781e0 100644
--- a/bundle/next/eclipse-che-preview-openshift/manifests/org_v1_che_crd.yaml
+++ b/bundle/next/eclipse-che-preview-openshift/manifests/org_v1_che_crd.yaml
@@ -363,6 +363,11 @@ spec:
                         values are: `9.6` and `13.3`. Migrate your PostgreSQL database
                         to switch from one version to another.'
                       type: string
+                    pvcClaimSize:
+                      description: Size of the persistent volume claim for database.
+                        Defaults to `1Gi`. To update pvc storageclass that provisions
+                        it must support resize when Eclipse Che has been already deployed.
+                      type: string
                   type: object
                 devWorkspace:
                   description: DevWorkspace operator configuration
diff --git a/config/crd/bases/org_v1_che_crd-v1beta1.yaml b/config/crd/bases/org_v1_che_crd-v1beta1.yaml
index cf9cac94d..39e884e43 100644
--- a/config/crd/bases/org_v1_che_crd-v1beta1.yaml
+++ b/config/crd/bases/org_v1_che_crd-v1beta1.yaml
@@ -353,6 +353,11 @@ spec:
                     values are: `9.6` and `13.3`. Migrate your PostgreSQL database
                     to switch from one version to another.'
                   type: string
+                pvcClaimSize:
+                  description: Size of the persistent volume claim for database. Defaults
+                    to `1Gi`. To update pvc storageclass that provisions it must support
+                    resize when Eclipse Che has been already deployed.
+                  type: string
               type: object
             devWorkspace:
               description: DevWorkspace operator configuration
diff --git a/config/crd/bases/org_v1_che_crd.yaml b/config/crd/bases/org_v1_che_crd.yaml
index 4342ce58e..8626bf93e 100644
--- a/config/crd/bases/org_v1_che_crd.yaml
+++ b/config/crd/bases/org_v1_che_crd.yaml
@@ -363,6 +363,11 @@ spec:
                         values are: `9.6` and `13.3`. Migrate your PostgreSQL database
                         to switch from one version to another.'
                       type: string
+                    pvcClaimSize:
+                      description: Size of the persistent volume claim for database.
+                        Defaults to `1Gi`. To update pvc storageclass that provisions
+                        it must support resize when Eclipse Che has been already deployed.
+                      type: string
                   type: object
                 devWorkspace:
                   description: DevWorkspace operator configuration
diff --git a/helmcharts/next/crds/org_v1_che_crd.yaml b/helmcharts/next/crds/org_v1_che_crd.yaml
index 4342ce58e..8626bf93e 100644
--- a/helmcharts/next/crds/org_v1_che_crd.yaml
+++ b/helmcharts/next/crds/org_v1_che_crd.yaml
@@ -363,6 +363,11 @@ spec:
                         values are: `9.6` and `13.3`. Migrate your PostgreSQL database
                         to switch from one version to another.'
                       type: string
+                    pvcClaimSize:
+                      description: Size of the persistent volume claim for database.
+                        Defaults to `1Gi`. To update pvc storageclass that provisions
+                        it must support resize when Eclipse Che has been already deployed.
+                      type: string
                   type: object
                 devWorkspace:
                   description: DevWorkspace operator configuration
diff --git a/pkg/deploy/defaults.go b/pkg/deploy/defaults.go
index 4378157e5..a6c2116d8 100644
--- a/pkg/deploy/defaults.go
+++ b/pkg/deploy/defaults.go
@@ -69,6 +69,7 @@ const (
 	DefaultCheMetricsPort          = int32(8087)
 	DefaultCheDebugPort            = int32(8000)
 	DefaultPostgresVolumeClaimName = "postgres-data"
+	DefaultPostgresPvcClaimSize    = "1Gi"
 
 	DefaultJavaOpts          = "-XX:MaxRAMPercentage=85.0"
 	DefaultWorkspaceJavaOpts = "-XX:MaxRAM=150m -XX:MaxRAMFraction=2 -XX:+UseParallelGC " +
diff --git a/pkg/deploy/postgres/postgres.go b/pkg/deploy/postgres/postgres.go
index bbad13f6e..64c419479 100644
--- a/pkg/deploy/postgres/postgres.go
+++ b/pkg/deploy/postgres/postgres.go
@@ -75,7 +75,8 @@ func (p *Postgres) SyncService() (bool, error) {
 }
 
 func (p *Postgres) SyncPVC() (bool, error) {
-	done, err := deploy.SyncPVCToCluster(p.deployContext, deploy.DefaultPostgresVolumeClaimName, "1Gi", deploy.PostgresName)
+	pvcClaimSize := util.GetValue(p.deployContext.CheCluster.Spec.Database.PvcClaimSize, deploy.DefaultPostgresPvcClaimSize)
+	done, err := deploy.SyncPVCToCluster(p.deployContext, deploy.DefaultPostgresVolumeClaimName, pvcClaimSize, deploy.PostgresName)
 	if !done {
 		if err == nil {
 			logrus.Infof("Waiting on pvc '%s' to be bound. Sometimes PVC can be bound only when the first consumer is created.", deploy.DefaultPostgresVolumeClaimName)