diff --git a/build/drone/ubuntu.sh b/build/drone/ubuntu.sh
index 80ad699f4..c4e4e0d74 100755
--- a/build/drone/ubuntu.sh
+++ b/build/drone/ubuntu.sh
@@ -4,7 +4,7 @@ set -ue
 
 # build binary
 apt-get update -y
-apt-get install -y -q squashfs-tools build-essential ruby bison ruby-dev git-core texinfo curl openssl
+apt-get install -y -q squashfs-tools build-essential ruby bison ruby-dev git-core texinfo curl openssl tzdata
 
 update-ca-certificates
 
diff --git a/build/drone/ubuntu_oss.sh b/build/drone/ubuntu_oss.sh
index 664dd7ce0..3f061bf56 100755
--- a/build/drone/ubuntu_oss.sh
+++ b/build/drone/ubuntu_oss.sh
@@ -3,7 +3,7 @@
 set -ue
 
 apt-get update -y
-apt-get install -y -q squashfs-tools build-essential ruby bison ruby-dev git-core texinfo curl openssl
+apt-get install -y -q squashfs-tools build-essential ruby bison ruby-dev git-core texinfo curl openssl tzdata
 
 update-ca-certificates