diff --git a/docs/running_psalm/issues/MutableDependency.md b/docs/running_psalm/issues/MutableDependency.md
index fb855305a..47ccee3ae 100644
--- a/docs/running_psalm/issues/MutableDependency.md
+++ b/docs/running_psalm/issues/MutableDependency.md
@@ -1,6 +1,6 @@
 # MutableDependency
 
-Emitted when an immutable class inherits from a class or trait not marked immutable
+Emitted when an immutable class inherits from a class or trait not marked @psalm-immutable
 
 ```php
 <?php
diff --git a/src/Psalm/Internal/Analyzer/ClassAnalyzer.php b/src/Psalm/Internal/Analyzer/ClassAnalyzer.php
index 8ab8974e3..39db956b3 100644
--- a/src/Psalm/Internal/Analyzer/ClassAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/ClassAnalyzer.php
@@ -313,8 +313,8 @@ class ClassAnalyzer extends ClassLikeAnalyzer
                 ) {
                     if (IssueBuffer::accepts(
                         new MissingImmutableAnnotation(
-                            $parent_fq_class_name . ' is marked immutable, but '
-                                . $fq_class_name . ' is not marked immutable',
+                            $parent_fq_class_name . ' is marked @psalm-immutable, but '
+                                . $fq_class_name . ' is not marked @psalm-immutable',
                             $code_location
                         ),
                         $storage->suppressed_issues + $this->getSuppressedIssues()
@@ -328,7 +328,7 @@ class ClassAnalyzer extends ClassLikeAnalyzer
                 ) {
                     if (IssueBuffer::accepts(
                         new MutableDependency(
-                            $fq_class_name . ' is marked immutable but ' . $parent_fq_class_name . ' is not',
+                            $fq_class_name . ' is marked @psalm-immutable but ' . $parent_fq_class_name . ' is not',
                             $code_location
                         ),
                         $storage->suppressed_issues + $this->getSuppressedIssues()
@@ -550,8 +550,8 @@ class ClassAnalyzer extends ClassLikeAnalyzer
             ) {
                 if (IssueBuffer::accepts(
                     new MissingImmutableAnnotation(
-                        $interface_name . ' is marked immutable, but '
-                            . $fq_class_name . ' is not marked immutable',
+                        $interface_name . ' is marked @psalm-immutable, but '
+                            . $fq_class_name . ' is not marked @psalm-immutable',
                         $code_location
                     ),
                     $storage->suppressed_issues + $this->getSuppressedIssues()
@@ -1615,7 +1615,7 @@ class ClassAnalyzer extends ClassLikeAnalyzer
                 if ($storage->mutation_free && !$trait_storage->mutation_free) {
                     if (IssueBuffer::accepts(
                         new MutableDependency(
-                            $storage->name . ' is marked immutable but ' . $fq_trait_name . ' is not',
+                            $storage->name . ' is marked @psalm-immutable but ' . $fq_trait_name . ' is not',
                             new CodeLocation($previous_trait_analyzer ?: $this, $trait_name)
                         ),
                         $storage->suppressed_issues + $this->getSuppressedIssues()
diff --git a/src/Psalm/Internal/Analyzer/MethodComparator.php b/src/Psalm/Internal/Analyzer/MethodComparator.php
index a50d77692..11a4ff8ef 100644
--- a/src/Psalm/Internal/Analyzer/MethodComparator.php
+++ b/src/Psalm/Internal/Analyzer/MethodComparator.php
@@ -281,10 +281,10 @@ class MethodComparator
         ) {
             if (IssueBuffer::accepts(
                 new MissingImmutableAnnotation(
-                    $cased_guide_method_id . ' is marked immutable, but '
+                    $cased_guide_method_id . ' is marked @psalm-immutable, but '
                         . $implementer_classlike_storage->name . '::'
                         . ($guide_method_storage->cased_name ?: '')
-                        . ' is not marked immutable',
+                        . ' is not marked @psalm-immutable',
                     $code_location
                 ),
                 $suppressed_issues