diff --git a/ray-operator/controllers/ray/utils/validation.go b/ray-operator/controllers/ray/utils/validation.go
index a3e6da66e80..652ff0e14b6 100644
--- a/ray-operator/controllers/ray/utils/validation.go
+++ b/ray-operator/controllers/ray/utils/validation.go
@@ -193,7 +193,7 @@ func ValidateRayClusterSpec(spec *rayv1.RayClusterSpec, annotations map[string]s
 
 	if IsAuthEnabled(spec) {
 		if spec.RayVersion == "" {
-			return fmt.Errorf("authOptions.mode is 'token' but RayVersion was not specified. Ray version 2.51.0 or later is required")
+			return fmt.Errorf("authOptions.mode is 'token' but RayVersion was not specified. Ray version 2.52.0 or later is required")
 		}
 
 		rayVersion, err := version.ParseGeneric(spec.RayVersion)
@@ -201,10 +201,10 @@ func ValidateRayClusterSpec(spec *rayv1.RayClusterSpec, annotations map[string]s
 			return fmt.Errorf("authOptions.mode is 'token' but RayVersion format is invalid: %s, %w", spec.RayVersion, err)
 		}
 
-		// Require minimum Ray version 2.51.0
-		minVersion := version.MustParseGeneric("2.51.0")
+		// Require minimum Ray version 2.52.0
+		minVersion := version.MustParseGeneric("2.52.0")
 		if rayVersion.LessThan(minVersion) {
-			return fmt.Errorf("authOptions.mode is 'token' but minimum Ray version is 2.51.0, got %s", spec.RayVersion)
+			return fmt.Errorf("authOptions.mode is 'token' but minimum Ray version is 2.52.0, got %s", spec.RayVersion)
 		}
 
 	}
diff --git a/ray-operator/controllers/ray/utils/validation_test.go b/ray-operator/controllers/ray/utils/validation_test.go
index 494fe39c29c..014d0917d68 100644
--- a/ray-operator/controllers/ray/utils/validation_test.go
+++ b/ray-operator/controllers/ray/utils/validation_test.go
@@ -858,11 +858,6 @@ func TestValidateRayClusterSpecRayVersionForAuth(t *testing.T) {
 		errorMessage string
 		expectError  bool
 	}{
-		{
-			name:        "Valid Ray version 2.51.0",
-			rayVersion:  "2.51.0",
-			expectError: false,
-		},
 		{
 			name:        "Valid Ray version 2.52.0",
 			rayVersion:  "2.52.0",
@@ -877,7 +872,7 @@ func TestValidateRayClusterSpecRayVersionForAuth(t *testing.T) {
 			name:         "Invalid Ray version 2.50.0",
 			rayVersion:   "2.50.0",
 			expectError:  true,
-			errorMessage: "authOptions.mode is 'token' but minimum Ray version is 2.51.0, got 2.50.0",
+			errorMessage: "authOptions.mode is 'token' but minimum Ray version is 2.52.0, got 2.50.0",
 		},
 		{
 			name:         "Invalid Ray version format",
@@ -889,7 +884,7 @@ func TestValidateRayClusterSpecRayVersionForAuth(t *testing.T) {
 			name:         "Empty Ray version",
 			rayVersion:   "",
 			expectError:  true,
-			errorMessage: "authOptions.mode is 'token' but RayVersion was not specified. Ray version 2.51.0 or later is required",
+			errorMessage: "authOptions.mode is 'token' but RayVersion was not specified. Ray version 2.52.0 or later is required",
 		},
 	}
 
diff --git a/ray-operator/test/e2e/raycluster_auth_test.go b/ray-operator/test/e2e/raycluster_auth_test.go
index 67f2a7e4113..de37e401209 100644
--- a/ray-operator/test/e2e/raycluster_auth_test.go
+++ b/ray-operator/test/e2e/raycluster_auth_test.go
@@ -28,7 +28,7 @@ func TestRayClusterAuthOptions(t *testing.T) {
 		t.Parallel()
 
 		rayClusterAC := rayv1ac.RayCluster("raycluster-auth-token", namespace.Name).
-			WithSpec(NewRayClusterSpecWithAuth(rayv1.AuthModeToken).WithRayVersion("2.51"))
+			WithSpec(NewRayClusterSpecWithAuth(rayv1.AuthModeToken).WithRayVersion("2.52"))
 
 		rayCluster, err := test.Client().Ray().RayV1().RayClusters(namespace.Name).Apply(test.Ctx(), rayClusterAC, TestApplyOptions)
 		g.Expect(err).NotTo(HaveOccurred())