diff --git a/wsl-pro-service/debian/rules b/wsl-pro-service/debian/rules
index 638747a1b..4bf30e394 100755
--- a/wsl-pro-service/debian/rules
+++ b/wsl-pro-service/debian/rules
@@ -2,6 +2,7 @@
 export DH_VERBOSE=1
 
 export GOCACHE=$(shell mktemp -d /tmp/gocache-XXXX)
+export GOTOOLCHAIN=go1.21.1
 
 # We want to copy special files from our monorepo like "common/version".
 export DH_GOLANG_INSTALL_ALL=1