diff --git a/addons/README.md b/addons/README.md
index 0d97815ee..79ab9a926 100644
--- a/addons/README.md
+++ b/addons/README.md
@@ -3,7 +3,7 @@
 ## gdgifexporter
 
 - Upstream: https://github.com/jegor377/godot-gdgifexporter
-- Version: git (201123154acfb9a1e00149fa708b4f13645d88dc, 2020)
+- Version: git (b6a6628dc253acb5c2955bc9ca5c8eaa2eaf2e1a, 2021)
 - License: MIT
 
 Files extracted from source:
diff --git a/addons/gdgifexporter/quantization/median_cut.gd b/addons/gdgifexporter/quantization/median_cut.gd
index ba81994a5..98fac2bb1 100644
--- a/addons/gdgifexporter/quantization/median_cut.gd
+++ b/addons/gdgifexporter/quantization/median_cut.gd
@@ -13,9 +13,10 @@ class TreeNode:
 	var average_color: Array
 	var axis: int
 	var median: int
-	var parent: TreeNode
-	var left: TreeNode
-	var right: TreeNode
+	# Comments is workaround for Godot memory leak bug
+	var parent#: TreeNode
+	var left#: TreeNode
+	var right#: TreeNode
 
 
 	func _init(_parent: TreeNode, _colors: Array):