diff --git a/lib/EvReactor.php b/lib/EvReactor.php
index da70b29..8a77174 100644
--- a/lib/EvReactor.php
+++ b/lib/EvReactor.php
@@ -111,6 +111,8 @@ class EvReactor implements Reactor {
             $this->loop->run($flags);
         }
 
+        \gc_collect_cycles();
+
         $this->state = self::STOPPED;
         if ($this->stopException) {
             $e = $this->stopException;
diff --git a/lib/LibeventReactor.php b/lib/LibeventReactor.php
index 653a5c3..72f146c 100644
--- a/lib/LibeventReactor.php
+++ b/lib/LibeventReactor.php
@@ -92,6 +92,8 @@ class LibeventReactor implements Reactor {
             \event_base_loop($this->keepAliveBase, $flags);
         }
 
+        \gc_collect_cycles();
+
         $this->state = self::STOPPED;
         if ($this->stopException) {
             $e = $this->stopException;
diff --git a/lib/NativeReactor.php b/lib/NativeReactor.php
index a399f60..f0391e4 100644
--- a/lib/NativeReactor.php
+++ b/lib/NativeReactor.php
@@ -73,6 +73,8 @@ class NativeReactor implements Reactor {
             }
         }
 
+        \gc_collect_cycles();
+
         $this->timersEnabled = false;
         $this->state = self::STOPPED;
     }
diff --git a/lib/UvReactor.php b/lib/UvReactor.php
index 472e189..343bb60 100644
--- a/lib/UvReactor.php
+++ b/lib/UvReactor.php
@@ -93,6 +93,8 @@ class UvReactor implements Reactor {
             \uv_run($this->loop, \UV::RUN_DEFAULT | (empty($this->immediates) ? \UV::RUN_ONCE : \UV::RUN_NOWAIT));
         }
 
+        \gc_collect_cycles();
+
         $this->state = self::STOPPED;
         if ($this->stopException) {
             $e = $this->stopException;
@@ -134,7 +136,7 @@ class UvReactor implements Reactor {
                 "Cannot tick() recursively; event reactor already active"
             );
         }
-        
+
         $this->state = self::TICKING;
 
         $noWait = (bool) $noWait;
@@ -144,7 +146,7 @@ class UvReactor implements Reactor {
                 break;
             }
         }
-        
+
         // Check the conditional again because a manual stop() could've changed the state
         if ($this->state) {
             $flags = $noWait || !empty($this->immediates) ? (\UV::RUN_NOWAIT | \UV::RUN_ONCE) : \UV::RUN_ONCE;