diff --git a/.githooks/post-merge b/.githooks/post-merge
index 4d39554340ceb07691afc70af5309b368d62f245..dc8b1c4bd0310f227c64afa43243bc416d660da8 100755
--- a/.githooks/post-merge
+++ b/.githooks/post-merge
@@ -1,7 +1,6 @@
 #!/bin/sh
-set -eu
-# shellcheck disable=SC1090
-. ~/.bashrc
+set -eux
+eval "$(grep 'export HELM_HOME' .bashrc)"
 cd "$(git rev-parse --show-toplevel)"
 echo Installing Golang apps >> /dev/stderr
 go get github.com/giantswarm/semver-bump || true
diff --git a/requirements.txt b/requirements.txt
index 9a09cb63020ae664e7b7d84e79cedabd1b981729..cf89fa2b868124a778f815c47a3055f4da042941 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,6 +16,7 @@ httpbin
 httpie
 identify
 importlab
+invoke
 khal
 khard
 mycli