diff --git a/srcpkgs/tmux/template b/srcpkgs/tmux/template
index 40c39fac579..0050e3f5a22 100644
--- a/srcpkgs/tmux/template
+++ b/srcpkgs/tmux/template
@@ -1,7 +1,7 @@
 # Template file for 'tmux'
 pkgname=tmux
-version=2.8
-revision=2
+version=2.9a
+revision=1
 build_style=gnu-configure
 makedepends="libevent-devel ncurses-devel"
 short_desc="Terminal Multiplexer"
@@ -10,7 +10,7 @@ license="ISC"
 homepage="https://tmux.github.io"
 changelog="https://raw.githubusercontent.com/tmux/tmux/master/CHANGES"
 distfiles="https://github.com/tmux/tmux/releases/download/${version}/tmux-${version}.tar.gz"
-checksum=7f6bf335634fafecff878d78de389562ea7f73a7367f268b66d37ea13617a2ba
+checksum=839d167a4517a6bffa6b6074e89a9a8630547b2dea2086f1fad15af12ab23b25
 
 post_install() {
 	vlicense COPYING