diff --git a/charts/postgres-operator/crds/postgresqls.yaml b/charts/postgres-operator/crds/postgresqls.yaml
index c801346e4..8245e7171 100644
--- a/charts/postgres-operator/crds/postgresqls.yaml
+++ b/charts/postgres-operator/crds/postgresqls.yaml
@@ -138,6 +138,16 @@ spec:
               connectionPooler:
                 type: object
                 properties:
+                  imagePullSecrets:
+                    type: array
+                    nullable: true
+                    items:
+                      type: object
+                      required:
+                        - name
+                      properties:
+                        name:
+                          type: string
                   dockerImage:
                     type: string
                   maxDBConnections:
diff --git a/docs/reference/cluster_manifest.md b/docs/reference/cluster_manifest.md
index ae23dabb9..b3ad1adea 100644
--- a/docs/reference/cluster_manifest.md
+++ b/docs/reference/cluster_manifest.md
@@ -597,6 +597,9 @@ for both master and replica pooler services (if `enableReplicaConnectionPooler`
   User to create for connection pooler to be able to connect to a database.
   You can also choose a role from the `users` section or a system user role.
 
+* **imagePullSecrets**
+  References an existing Kubernetes secret to use when pulling a custom pooler image.
+
 * **dockerImage**
   Which docker image to use for connection pooler deployment.
 
diff --git a/manifests/postgresql.crd.yaml b/manifests/postgresql.crd.yaml
index 39811824e..dab035c54 100644
--- a/manifests/postgresql.crd.yaml
+++ b/manifests/postgresql.crd.yaml
@@ -154,6 +154,24 @@ spec:
                 properties:
                   dockerImage:
                     type: string
+                  imagePullSecrets:
+                    items:
+                      description: |-
+                        LocalObjectReference contains enough information to let you locate the
+                        referenced object inside the same namespace.
+                      properties:
+                        name:
+                          default: ""
+                          description: |-
+                            Name of the referent.
+                            This field is effectively required, but due to backwards compatibility is
+                            allowed to be empty. Instances of this type with an empty value here are
+                            almost certainly wrong.
+                            More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
+                          type: string
+                      type: object
+                      x-kubernetes-map-type: atomic
+                    type: array
                   maxDBConnections:
                     format: int32
                     type: integer
diff --git a/pkg/apis/acid.zalan.do/v1/postgresql.crd.yaml b/pkg/apis/acid.zalan.do/v1/postgresql.crd.yaml
index 39811824e..dab035c54 100644
--- a/pkg/apis/acid.zalan.do/v1/postgresql.crd.yaml
+++ b/pkg/apis/acid.zalan.do/v1/postgresql.crd.yaml
@@ -154,6 +154,24 @@ spec:
                 properties:
                   dockerImage:
                     type: string
+                  imagePullSecrets:
+                    items:
+                      description: |-
+                        LocalObjectReference contains enough information to let you locate the
+                        referenced object inside the same namespace.
+                      properties:
+                        name:
+                          default: ""
+                          description: |-
+                            Name of the referent.
+                            This field is effectively required, but due to backwards compatibility is
+                            allowed to be empty. Instances of this type with an empty value here are
+                            almost certainly wrong.
+                            More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
+                          type: string
+                      type: object
+                      x-kubernetes-map-type: atomic
+                    type: array
                   maxDBConnections:
                     format: int32
                     type: integer
diff --git a/pkg/apis/acid.zalan.do/v1/postgresql_type.go b/pkg/apis/acid.zalan.do/v1/postgresql_type.go
index 1dadfd06c..468b4c6a0 100644
--- a/pkg/apis/acid.zalan.do/v1/postgresql_type.go
+++ b/pkg/apis/acid.zalan.do/v1/postgresql_type.go
@@ -321,9 +321,10 @@ type ConnectionPooler struct {
 	Schema            string `json:"schema,omitempty"`
 	User              string `json:"user,omitempty"`
 	// +kubebuilder:validation:Enum=session;transaction
-	Mode             string `json:"mode,omitempty"`
-	DockerImage      string `json:"dockerImage,omitempty"`
-	MaxDBConnections *int32 `json:"maxDBConnections,omitempty"`
+	Mode             string                    `json:"mode,omitempty"`
+	DockerImage      string                    `json:"dockerImage,omitempty"`
+	MaxDBConnections *int32                    `json:"maxDBConnections,omitempty"`
+	ImagePullSecrets []v1.LocalObjectReference `json:"imagePullSecrets,omitempty"`
 
 	*Resources `json:"resources,omitempty"`
 }
diff --git a/pkg/apis/acid.zalan.do/v1/zz_generated.deepcopy.go b/pkg/apis/acid.zalan.do/v1/zz_generated.deepcopy.go
index 159a87f35..634afbf51 100644
--- a/pkg/apis/acid.zalan.do/v1/zz_generated.deepcopy.go
+++ b/pkg/apis/acid.zalan.do/v1/zz_generated.deepcopy.go
@@ -111,6 +111,11 @@ func (in *ConnectionPooler) DeepCopyInto(out *ConnectionPooler) {
 		*out = new(int32)
 		**out = **in
 	}
+	if in.ImagePullSecrets != nil {
+		in, out := &in.ImagePullSecrets, &out.ImagePullSecrets
+		*out = make([]corev1.LocalObjectReference, len(*in))
+		copy(*out, *in)
+	}
 	if in.Resources != nil {
 		in, out := &in.Resources, &out.Resources
 		*out = new(Resources)
diff --git a/pkg/cluster/connection_pooler.go b/pkg/cluster/connection_pooler.go
index ac4ce67d8..63a281005 100644
--- a/pkg/cluster/connection_pooler.go
+++ b/pkg/cluster/connection_pooler.go
@@ -412,6 +412,10 @@ func (c *Cluster) generateConnectionPoolerPodTemplate(role PostgresRole) (
 		},
 	}
 
+	if len(connectionPoolerSpec.ImagePullSecrets) > 0 {
+		podTemplate.Spec.ImagePullSecrets = connectionPoolerSpec.ImagePullSecrets
+	}
+
 	nodeAffinity := c.nodeAffinity(c.OpConfig.NodeReadinessLabel, spec.NodeAffinity)
 	if c.OpConfig.EnablePodAntiAffinity {
 		labelsSet := labels.Set(c.connectionPoolerLabels(role, false).MatchLabels)