diff --git a/srcpkgs/gns3-server/patches/async-timeout.patch b/srcpkgs/gns3-server/patches/async-timeout.patch
index f2be5020484..12e66181fcf 100644
--- a/srcpkgs/gns3-server/patches/async-timeout.patch
+++ b/srcpkgs/gns3-server/patches/async-timeout.patch
@@ -2,7 +2,6 @@
 +++ requirements.txt	2018-06-16 17:35:29.289966118 -0700
 @@ -8,5 +8,5 @@
  zipstream>=1.1.4
- typing>=3.5.3.0 # Otherwise yarl fails with python 3.4
  prompt-toolkit==1.0.15
 -async-timeout<3.0.0 # pyup: ignore; 3.0 drops support for python 3.4
 +async-timeout
diff --git a/srcpkgs/gns3-server/template b/srcpkgs/gns3-server/template
index 3bff2dd0567..6bd9c067b20 100644
--- a/srcpkgs/gns3-server/template
+++ b/srcpkgs/gns3-server/template
@@ -1,6 +1,6 @@
 # Template file for 'gns3-server'
 pkgname=gns3-server
-version=2.1.17
+version=2.1.21
 revision=1
 build_style=python3-module
 pycompile_module="gns3server"
@@ -13,7 +13,7 @@ maintainer="Michael Aldridge <maldridge@voidlinux.org>"
 license="GPL-3.0-or-later"
 homepage="https://gns3.com"
 distfiles="https://github.com/GNS3/gns3-server/archive/v${version}.tar.gz"
-checksum=c52268244b6e74f7f03b6f35be7b853c6cd6d04511f74b04b5eea525f4b19fad
+checksum=81ea693d5995005cc50450d558128a9a9fda9ea8ff00225de1090148ffbc70ff
 
 pre_build() {
 	# relax requirements