diff --git a/composer.json b/composer.json
index 570f5ff..a0b97ff 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
 	"require": {
 		"yiisoft/yii2": "^2",
 		"yiisoft/yii2-httpclient": "^2",
-		"tedivm/jshrink": "^1.3.0",
+		"tedivm/jshrink": "v1.6.6",
 		"skeeks/cssmin": "^1.0",
 		"mrclay/minify": "^3.0.3"
 	},