diff --git a/.changelog/4472.txt b/.changelog/4472.txt
new file mode 100644
index 0000000000..c120a41728
--- /dev/null
+++ b/.changelog/4472.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+compute: fixed overly-aggressive detection of changes to google_compute_security_policy rules
+```
diff --git a/google-beta/resource_compute_security_policy.go b/google-beta/resource_compute_security_policy.go
index 60203a9e7c..bf79eba927 100644
--- a/google-beta/resource_compute_security_policy.go
+++ b/google-beta/resource_compute_security_policy.go
@@ -146,6 +146,7 @@ func resourceComputeSecurityPolicy() *schema.Resource {
 						"preview": {
 							Type:        schema.TypeBool,
 							Optional:    true,
+							Computed:    true,
 							Description: `When set to true, the action specified above is not enforced. Stackdriver logs for requests that trigger a preview action are annotated as such.`,
 						},
 					},
diff --git a/google-beta/resource_dataflow_flex_template_job_test.go b/google-beta/resource_dataflow_flex_template_job_test.go
index df04d28bb0..0d037482e0 100644
--- a/google-beta/resource_dataflow_flex_template_job_test.go
+++ b/google-beta/resource_dataflow_flex_template_job_test.go
@@ -8,7 +8,7 @@ import (
 
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/terraform"
-	"google.golang.org/api/compute/v1"
+	compute "google.golang.org/api/compute/v1"
 )
 
 func TestAccDataflowFlexTemplateJob_basic(t *testing.T) {