diff --git a/pkg/cluster/k8sres_test.go b/pkg/cluster/k8sres_test.go
index a442a39b6..f1c0e968b 100644
--- a/pkg/cluster/k8sres_test.go
+++ b/pkg/cluster/k8sres_test.go
@@ -557,95 +557,6 @@ func TestExtractPgVersionFromBinPath(t *testing.T) {
 	}
 }
 
-func GetPgVersion(t *testing.T) {
-	testName := "TestGetPgVersion"
-	tests := []struct {
-		subTest          string
-		pgContainer      v1.Container
-		currentPgVersion string
-		newPgVersion     string
-	}{
-		{
-			subTest: "new version with decimal point differs from current SPILO_CONFIGURATION",
-			pgContainer: v1.Container{
-				Name: "postgres",
-				Env: []v1.EnvVar{
-					{
-						Name:  "SPILO_CONFIGURATION",
-						Value: "{\"postgresql\": {\"bin_dir\": \"/usr/lib/postgresql/9.6/bin\"}}",
-					},
-				},
-			},
-			currentPgVersion: "9.6",
-			newPgVersion:     "12",
-		},
-		{
-			subTest: "new version differs from current SPILO_CONFIGURATION",
-			pgContainer: v1.Container{
-				Name: "postgres",
-				Env: []v1.EnvVar{
-					{
-						Name:  "SPILO_CONFIGURATION",
-						Value: "{\"postgresql\": {\"bin_dir\": \"/usr/lib/postgresql/11/bin\"}}",
-					},
-				},
-			},
-			currentPgVersion: "11",
-			newPgVersion:     "12",
-		},
-		{
-			subTest: "new version is lower than the one found in current SPILO_CONFIGURATION",
-			pgContainer: v1.Container{
-				Name: "postgres",
-				Env: []v1.EnvVar{
-					{
-						Name:  "SPILO_CONFIGURATION",
-						Value: "{\"postgresql\": {\"bin_dir\": \"/usr/lib/postgresql/12/bin\"}}",
-					},
-				},
-			},
-			currentPgVersion: "12",
-			newPgVersion:     "11",
-		},
-		{
-			subTest: "new version is the same like in the current SPILO_CONFIGURATION",
-			pgContainer: v1.Container{
-				Name: "postgres",
-				Env: []v1.EnvVar{
-					{
-						Name:  "SPILO_CONFIGURATION",
-						Value: "{\"postgresql\": {\"bin_dir\": \"/usr/lib/postgresql/12/bin\"}}",
-					},
-				},
-			},
-			currentPgVersion: "12",
-			newPgVersion:     "12",
-		},
-	}
-
-	var cluster = New(
-		Config{
-			OpConfig: config.Config{
-				ProtectedRoles: []string{"admin"},
-				Auth: config.Auth{
-					SuperUsername:       superUserName,
-					ReplicationUsername: replicationUserName,
-				},
-			},
-		}, k8sutil.KubernetesClient{}, acidv1.Postgresql{}, logger, eventRecorder)
-
-	for _, tt := range tests {
-		pgVersion, err := cluster.getNewPgVersion(tt.pgContainer, tt.newPgVersion)
-		if err != nil {
-			t.Errorf("Unexpected error: %v", err)
-		}
-		if pgVersion != tt.currentPgVersion {
-			t.Errorf("%s %s: Expected version %s, have %s instead",
-				testName, tt.subTest, tt.currentPgVersion, pgVersion)
-		}
-	}
-}
-
 func TestSecretVolume(t *testing.T) {
 	testName := "TestSecretVolume"
 	tests := []struct {