diff --git a/CHANGELOG.md b/CHANGELOG.md
index 20b20547c..2c7247179 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -55,6 +55,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Changed `$origin` and `$scale` parameter types of `Elastica\Query\FunctionScore::addDecayFunction()` to allow `float|int|string` [#2144](https://github.com/ruflin/Elastica/pull/2144)
 * Changed `$key` parameter type of `Elastica\Multi\Search::addSearch()` to allow `int|string|null` [#2144](https://github.com/ruflin/Elastica/pull/2144)
 * Changed `$options` parameter type of `Elastica\Index::create()` to only allow `array<string, mixed>` [#2147](https://github.com/ruflin/Elastica/pull/2147)
+* Changed `Elastica\Reindex::setWaitForCompletion()` to only allow `bool` [#2151](https://github.com/ruflin/Elastica/pull/2151)
 * Changed `Elastica\Search::addIndex()`, `Elasica\Search::addIndices()` and `Elastica\Search::hasIndex()` parameter type to only allow `Elastica\Index` [#2150](https://github.com/ruflin/Elastica/pull/2150)
 * Changed `$options` argument to not accept `int` in the following methods [#2148](https://github.com/ruflin/Elastica/pull/2148)
   * `Elastica\SearchableInterface::search()`
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 58317c4a6..f2d6eb229 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -170,11 +170,6 @@ parameters:
 			count: 1
 			path: tests/QueryBuilderTest.php
 
-		-
-			message: "#^Parameter \\#1 \\$value of method Elastica\\\\Reindex\\:\\:setWaitForCompletion\\(\\) expects bool, string given\\.$#"
-			count: 1
-			path: tests/ReindexTest.php
-
 		-
 			message: "#^Expression \"\\$index\\-\\>search\\('elastica search'\\)\\[3\\]\" on a separate line does not do anything\\.$#"
 			count: 1
diff --git a/src/Reindex.php b/src/Reindex.php
index 751c1a98f..05cc2698c 100644
--- a/src/Reindex.php
+++ b/src/Reindex.php
@@ -77,18 +77,9 @@ public function run(): Response
         return $this->_lastResponse;
     }
 
-    /**
-     * @param bool $value
-     */
-    public function setWaitForCompletion($value): void
+    public function setWaitForCompletion(bool $value): void
     {
-        if (\is_bool($value)) {
-            $value = $value ? 'true' : 'false';
-        } else {
-            \trigger_deprecation('ruflin/elastica', '7.2.0', 'Passing anything else than a boolean as 1st argument to "%s()" is deprecated, pass a boolean instead. It will be removed in 8.0.', __METHOD__);
-        }
-
-        $this->setParam(self::WAIT_FOR_COMPLETION, $value);
+        $this->setParam(self::WAIT_FOR_COMPLETION, $value ? 'true' : 'false');
     }
 
     public function setWaitForActiveShards($value): void
diff --git a/tests/ReindexTest.php b/tests/ReindexTest.php
index 502c4ab6b..88a539a82 100644
--- a/tests/ReindexTest.php
+++ b/tests/ReindexTest.php
@@ -149,24 +149,6 @@ public function testReindexWithFalseSetOnWaitForCompletion(): void
         $this->assertNotEmpty($reindex->getTaskId());
     }
 
-    /**
-     * @group functional
-     * @group legacy
-     */
-    public function testReindexWithDeprecatedConstantSetOnWaitForCompletion(): void
-    {
-        $oldIndex = $this->_createIndex('idx1', true, 2);
-        $this->_addDocs($oldIndex, 10);
-
-        $newIndex = $this->_createIndex('idx2', true, 2);
-
-        $reindex = new Reindex($oldIndex, $newIndex);
-        $reindex->setWaitForCompletion(Reindex::WAIT_FOR_COMPLETION_FALSE);
-        $reindex->run();
-
-        $this->assertNotEmpty($reindex->getTaskId());
-    }
-
     /**
      * @group functional
      */