diff --git a/UPGRADING.md b/UPGRADING.md
index 15e991fd278..70bf8292114 100644
--- a/UPGRADING.md
+++ b/UPGRADING.md
@@ -36,7 +36,6 @@
     - `Psalm\Type\Atomic\TEnumCase`
     - `Psalm\Type\Atomic\TFalse`
     - `Psalm\Type\Atomic\TGenericObject`
-    - `Psalm\Type\Atomic\THtmlEscapedString`
     - `Psalm\Type\Atomic\TIntMask`
     - `Psalm\Type\Atomic\TIntMaskOf`
     - `Psalm\Type\Atomic\TIntRange`
@@ -156,3 +155,6 @@
  - [BC] Method `Psalm\Issue\CodeIssue::getFileName()` was removed
  - [BC] Method `Psalm\Issue\CodeIssue::getMessage()` was removed
  - [BC] Method `Psalm\DocComment::parse()` was removed
+ - [BC] Class `Psalm\Type\Atomic\THtmlEscapedString` has been removed
+
+
diff --git a/docs/running_psalm/plugins/plugins_type_system.md b/docs/running_psalm/plugins/plugins_type_system.md
index 311bf37df56..031cb16ad09 100644
--- a/docs/running_psalm/plugins/plugins_type_system.md
+++ b/docs/running_psalm/plugins/plugins_type_system.md
@@ -139,7 +139,7 @@ if (true === $first) {
 
 `TCallableString` - denotes the `callable-string` type, used to represent an unknown string that is also `callable`.
 
-`THtmlEscapedString`, `TSqlSelectString` - these are special types, specifically for consumption by plugins.
+`TSqlSelectString` - this is a special type, specifically for consumption by plugins.
 
 `TLowercaseString` - denotes a string where every character is lowercased. (which can also result from a `strtolower` call).
 
diff --git a/examples/plugins/composer-based/echo-checker/EchoChecker.php b/examples/plugins/composer-based/echo-checker/EchoChecker.php
index c75eac76a56..a7255e4fd4a 100644
--- a/examples/plugins/composer-based/echo-checker/EchoChecker.php
+++ b/examples/plugins/composer-based/echo-checker/EchoChecker.php
@@ -1,16 +1,15 @@
 <?php
+
 namespace Psalm\Example\Plugin\ComposerBased;
 
 use PhpParser;
 use Psalm\CodeLocation;
-use Psalm\FileManipulation;
-use Psalm\IssueBuffer;
 use Psalm\Issue\ArgumentTypeCoercion;
+use Psalm\IssueBuffer;
 use Psalm\Plugin\EventHandler\AfterStatementAnalysisInterface;
 use Psalm\Plugin\EventHandler\Event\AfterStatementAnalysisEvent;
-use Psalm\Type\Atomic\TString;
 use Psalm\Type\Atomic\TLiteralString;
-use Psalm\Type\Atomic\THtmlEscapedString;
+use Psalm\Type\Atomic\TString;
 
 class EchoChecker implements AfterStatementAnalysisInterface
 {
@@ -19,7 +18,8 @@ class EchoChecker implements AfterStatementAnalysisInterface
      *
      * @return null|false
      */
-    public static function afterStatementAnalysis(AfterStatementAnalysisEvent $event): ?bool {
+    public static function afterStatementAnalysis(AfterStatementAnalysisEvent $event): ?bool
+    {
         $stmt = $event->getStmt();
         $statements_source = $event->getStatementsSource();
         if ($stmt instanceof PhpParser\Node\Stmt\Echo_) {
@@ -46,7 +46,6 @@ public static function afterStatementAnalysis(AfterStatementAnalysisEvent $event
                 foreach ($types as $type) {
                     if ($type instanceof TString
                         && !$type instanceof TLiteralString
-                        && !$type instanceof THtmlEscapedString
                     ) {
                         if (IssueBuffer::accepts(
                             new ArgumentTypeCoercion(
diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index 2c30710e499..85b6ca14f2b 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -353,9 +353,6 @@
     </PossiblyUndefinedIntArrayOffset>
   </file>
   <file src="src/Psalm/Type/Atomic.php">
-    <DeprecatedClass occurrences="2">
-      <code>new THtmlEscapedString()</code>
-    </DeprecatedClass>
     <PossiblyUndefinedIntArrayOffset occurrences="1">
       <code>array_keys($template_type_map[$value])[0]</code>
     </PossiblyUndefinedIntArrayOffset>
diff --git a/src/Psalm/Internal/Type/Comparator/ScalarTypeComparator.php b/src/Psalm/Internal/Type/Comparator/ScalarTypeComparator.php
index a8fdce09fc3..c387835375e 100644
--- a/src/Psalm/Internal/Type/Comparator/ScalarTypeComparator.php
+++ b/src/Psalm/Internal/Type/Comparator/ScalarTypeComparator.php
@@ -16,7 +16,6 @@
 use Psalm\Type\Atomic\TDependentListKey;
 use Psalm\Type\Atomic\TFalse;
 use Psalm\Type\Atomic\TFloat;
-use Psalm\Type\Atomic\THtmlEscapedString;
 use Psalm\Type\Atomic\TInt;
 use Psalm\Type\Atomic\TIntRange;
 use Psalm\Type\Atomic\TLiteralClassString;
@@ -536,8 +535,7 @@ public static function isContainedBy(
         }
 
         if ($container_type_part instanceof TString
-            && ($input_type_part instanceof TNumericString
-                || $input_type_part instanceof THtmlEscapedString)
+            && $input_type_part instanceof TNumericString
         ) {
             if ($container_type_part instanceof TLiteralString) {
                 if (is_numeric($container_type_part->value) && $atomic_comparison_result) {
@@ -551,8 +549,7 @@ public static function isContainedBy(
         }
 
         if ($input_type_part instanceof TString
-            && ($container_type_part instanceof TNumericString
-                || $container_type_part instanceof THtmlEscapedString)
+            && $container_type_part instanceof TNumericString
         ) {
             if ($input_type_part instanceof TLiteralString) {
                 return is_numeric($input_type_part->value);
diff --git a/src/Psalm/Internal/Type/TypeTokenizer.php b/src/Psalm/Internal/Type/TypeTokenizer.php
index 8230990b978..846062c7fc3 100644
--- a/src/Psalm/Internal/Type/TypeTokenizer.php
+++ b/src/Psalm/Internal/Type/TypeTokenizer.php
@@ -54,8 +54,7 @@ class TypeTokenizer
         'stringable-object' => true,
         'pure-callable' => true,
         'pure-Closure' => true,
-        'mysql-escaped-string' => true, // deprecated
-        'html-escaped-string' => true, // deprecated
+        'mysql-escaped-string' => true, // deprecated, should be removed in Psalm 5
         'literal-string' => true,
         'non-empty-literal-string' => true,
         'lowercase-string' => true,
diff --git a/src/Psalm/Type/Atomic.php b/src/Psalm/Type/Atomic.php
index 03dbc2eb7a2..e548df58219 100644
--- a/src/Psalm/Type/Atomic.php
+++ b/src/Psalm/Type/Atomic.php
@@ -32,7 +32,6 @@
 use Psalm\Type\Atomic\TFalse;
 use Psalm\Type\Atomic\TFloat;
 use Psalm\Type\Atomic\TGenericObject;
-use Psalm\Type\Atomic\THtmlEscapedString;
 use Psalm\Type\Atomic\TInt;
 use Psalm\Type\Atomic\TIntRange;
 use Psalm\Type\Atomic\TIterable;
@@ -269,9 +268,6 @@ public static function create(
             case 'numeric-string':
                 return new TNumericString();
 
-            case 'html-escaped-string':
-                return new THtmlEscapedString();
-
             case 'literal-string':
                 return new TNonspecificLiteralString();
 
diff --git a/src/Psalm/Type/Atomic/THtmlEscapedString.php b/src/Psalm/Type/Atomic/THtmlEscapedString.php
deleted file mode 100644
index 6a291a84136..00000000000
--- a/src/Psalm/Type/Atomic/THtmlEscapedString.php
+++ /dev/null
@@ -1,25 +0,0 @@
-<?php
-
-namespace Psalm\Type\Atomic;
-
-/**
- * Special type, specifically for consumption by plugins.
- * @deprecated going to be removed in Psalm 5. Use taints instead.
- */
-class THtmlEscapedString extends TString
-{
-    public function getKey(bool $include_extra = true): string
-    {
-        return 'html-escaped-string';
-    }
-
-    public function getId(bool $nested = false): string
-    {
-        return $this->getKey();
-    }
-
-    public function canBeFullyExpressedInPhp(int $analysis_php_version_id): bool
-    {
-        return false;
-    }
-}
diff --git a/tests/Config/PluginTest.php b/tests/Config/PluginTest.php
index 096d51bcdc8..2476d9be4ea 100644
--- a/tests/Config/PluginTest.php
+++ b/tests/Config/PluginTest.php
@@ -293,55 +293,6 @@ public function testEchoAnalyzerPluginWithUnescapedString(): void
         $this->analyzeFile($file_path, new Context());
     }
 
-    public function testEchoAnalyzerPluginWithEscapedString(): void
-    {
-        $this->project_analyzer = $this->getProjectAnalyzerWithConfig(
-            TestConfig::loadFromXML(
-                dirname(__DIR__, 2) . DIRECTORY_SEPARATOR,
-                '<?xml version="1.0"?>
-                <psalm
-                    errorLevel="1"
-                >
-                    <projectFiles>
-                        <directory name="src" />
-                    </projectFiles>
-                    <plugins>
-                        <plugin filename="examples/plugins/composer-based/echo-checker/EchoChecker.php" />
-                    </plugins>
-                    <issueHandlers>
-                        <UndefinedGlobalVariable errorLevel="suppress" />
-                        <MixedArgument errorLevel="suppress" />
-                    </issueHandlers>
-                </psalm>'
-            )
-        );
-
-        $this->project_analyzer->getCodebase()->config->initializePlugins($this->project_analyzer);
-
-        $file_path = getcwd() . '/src/somefile.php';
-
-        $this->addFile(
-            $file_path,
-            '<?php
-                /**
-                 * @param mixed $s
-                 * @return html-escaped-string
-                 */
-                function escapeHtml($s) : string {
-                    if (!is_scalar($s)) {
-                        throw new \UnexpectedValueException("bad value passed to escape");
-                    }
-                    /** @var html-escaped-string */
-                    return htmlentities((string) $s);
-                }
-            ?>
-            Some text
-            <?= escapeHtml($unsafe) ?>'
-        );
-
-        $this->analyzeFile($file_path, new Context());
-    }
-
     public function testFileAnalyzerPlugin(): void
     {
         require_once __DIR__ . '/Plugin/FilePlugin.php';