diff --git a/hare.spec b/hare.spec
index e4cab0f..31043b4 100644
--- a/hare.spec
+++ b/hare.spec
@@ -32,8 +32,10 @@ BuildRequires:  qbe
 BuildRequires:  binutils
 BuildRequires:  scdoc
 BuildRequires:  zstd
+BuildRequires:  timezone
 Requires:       harec
 Requires:       qbe
+Requires:       timezone
 
 %description
 Hare is a systems programming language designed