diff --git a/contrib/pyln-spec/requirements.txt b/contrib/pyln-spec/requirements.txt
index e4ffdca3a..a939f32cb 100644
--- a/contrib/pyln-spec/requirements.txt
+++ b/contrib/pyln-spec/requirements.txt
@@ -1 +1 @@
-pyln.proto ~= 0.9.3
+pyln.proto >= 0.9.3