diff --git a/.changelog/28794.txt b/.changelog/28794.txt
new file mode 100644
index 00000000000..3eb8c898337
--- /dev/null
+++ b/.changelog/28794.txt
@@ -0,0 +1,7 @@
+```release-note:bug
+resource/aws_codeartifact_repository_permissions_policy: Improve refresh to avoid unnecessary diffs in `policy_document`
+```
+
+```release-note:bug
+resource/aws_codeartifact_domain_permissions_policy: Improve refresh to avoid unnecessary diffs in `policy_document`
+```
diff --git a/internal/service/codeartifact/domain_permissions_policy.go b/internal/service/codeartifact/domain_permissions_policy.go
index 0d77a9b45b2..c685505ee71 100644
--- a/internal/service/codeartifact/domain_permissions_policy.go
+++ b/internal/service/codeartifact/domain_permissions_policy.go
@@ -39,10 +39,11 @@ func ResourceDomainPermissionsPolicy() *schema.Resource {
 				ForceNew: true,
 			},
 			"policy_document": {
-				Type:             schema.TypeString,
-				Required:         true,
-				ValidateFunc:     validation.StringIsJSON,
-				DiffSuppressFunc: verify.SuppressEquivalentPolicyDiffs,
+				Type:                  schema.TypeString,
+				Required:              true,
+				ValidateFunc:          validation.StringIsJSON,
+				DiffSuppressFunc:      verify.SuppressEquivalentPolicyDiffs,
+				DiffSuppressOnRefresh: true,
 				StateFunc: func(v interface{}) string {
 					json, _ := structure.NormalizeJsonString(v)
 					return json
diff --git a/internal/service/codeartifact/repository_permissions_policy.go b/internal/service/codeartifact/repository_permissions_policy.go
index 36578ca2d96..f909a2b786e 100644
--- a/internal/service/codeartifact/repository_permissions_policy.go
+++ b/internal/service/codeartifact/repository_permissions_policy.go
@@ -44,10 +44,11 @@ func ResourceRepositoryPermissionsPolicy() *schema.Resource {
 				ForceNew: true,
 			},
 			"policy_document": {
-				Type:             schema.TypeString,
-				Required:         true,
-				ValidateFunc:     validation.StringIsJSON,
-				DiffSuppressFunc: verify.SuppressEquivalentPolicyDiffs,
+				Type:                  schema.TypeString,
+				Required:              true,
+				ValidateFunc:          validation.StringIsJSON,
+				DiffSuppressFunc:      verify.SuppressEquivalentPolicyDiffs,
+				DiffSuppressOnRefresh: true,
 				StateFunc: func(v interface{}) string {
 					json, _ := structure.NormalizeJsonString(v)
 					return json