diff --git a/bin/dotbot b/bin/dotbot
index a2ffe9a..6232a50 100755
--- a/bin/dotbot
+++ b/bin/dotbot
@@ -7,9 +7,9 @@
 # is useful because we don't know the name of the python binary.
 
 ''':' # begin python string; this line is interpreted by the shell as `:`
-which python  >/dev/null 2>&1 && exec python  "$0" "$@"
-which python3 >/dev/null 2>&1 && exec python3 "$0" "$@"
-which python2 >/dev/null 2>&1 && exec python2 "$0" "$@"
+command -v python  >/dev/null 2>&1 && exec python  "$0" "$@"
+command -v python3 >/dev/null 2>&1 && exec python3 "$0" "$@"
+command -v python2 >/dev/null 2>&1 && exec python2 "$0" "$@"
 >&2 echo "error: cannot find python"
 exit 1
 '''
diff --git a/test/tests/find-python-executable.bash b/test/tests/find-python-executable.bash
index d4fa7eb..9a91a74 100644
--- a/test/tests/find-python-executable.bash
+++ b/test/tests/find-python-executable.bash
@@ -31,7 +31,7 @@ touch ~/tmp_bin/python &&
 chmod +x ~/tmp_bin/python &&
 cat >> ~/tmp_bin/python <<EOF
 #!$HOME/tmp_bin/bash
-exec $(which python)
+exec $(command -v python)
 EOF
 '