diff --git a/package/requirements.txt b/package/requirements.txt
index 59d997d..0731422 100644
--- a/package/requirements.txt
+++ b/package/requirements.txt
@@ -24,7 +24,7 @@ korean-lunar-calendar==0.2.1
 lxml==4.5.0
 matplotlib==3.2.1
 multitasking==0.0.9
-numpy==1.18.4
+numpy==1.22.0
 pandas==1.0.3
 pandas-datareader==0.8.1
 patsy==0.5.1