diff --git a/build/build.sh b/build/build.sh
index a18fd28f2..1053c860d 100755
--- a/build/build.sh
+++ b/build/build.sh
@@ -12,7 +12,7 @@ usage() {
 }
 
 ROOT=$(dirname $(dirname $(readlink -f $0)))
-GOVER=1.19                           # go version
+GOVER=1.21                           # go version
 CORSO_BUILD_CACHE="/tmp/.corsobuild" # shared persistent cache
 
 # Figure out os and architecture