diff --git a/plugins/woocommerce/changelog/pr-35339 b/plugins/woocommerce/changelog/pr-35339
new file mode 100644
index 00000000000..d35dcd7f381
--- /dev/null
+++ b/plugins/woocommerce/changelog/pr-35339
@@ -0,0 +1,4 @@
+Significance: patch
+Type: fix
+
+Use Imagick functions to set parallel thread count instead of direct putenv call as suggested in https://core.trac.wordpress.org/ticket/36534#comment:129.
diff --git a/plugins/woocommerce/includes/class-wc-regenerate-images-request.php b/plugins/woocommerce/includes/class-wc-regenerate-images-request.php
index 047a9e2f2a4..340c743dae8 100644
--- a/plugins/woocommerce/includes/class-wc-regenerate-images-request.php
+++ b/plugins/woocommerce/includes/class-wc-regenerate-images-request.php
@@ -33,8 +33,14 @@ class WC_Regenerate_Images_Request extends WC_Background_Process {
 		$this->prefix = 'wp_' . get_current_blog_id();
 		$this->action = 'wc_regenerate_images';
 
-		// This is needed to prevent timeouts due to threading. See https://core.trac.wordpress.org/ticket/36534.
-		@putenv( 'MAGICK_THREAD_LIMIT=1' ); // @codingStandardsIgnoreLine.
+		// Limit Imagick to only use 1 thread to avoid memory issues with OpenMP.
+		if ( extension_loaded( 'imagick' ) && method_exists( Imagick::class, 'setResourceLimit' ) ) {
+			if ( defined( 'Imagick::RESOURCETYPE_THREAD' ) ) {
+				Imagick::setResourceLimit( Imagick::RESOURCETYPE_THREAD, 1 );
+			} else {
+				Imagick::setResourceLimit( 6, 1 );
+			}
+		}
 
 		parent::__construct();
 	}