diff --git a/requirements.txt b/requirements.txt
index 8e08343..0a153e5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 torch[cpu]>=2.1.1
-PVNet-summation>=0.1.0
+PVNet-summation>=0.0.9
 pvnet>=2.4.0
 ocf_datapipes>=2.2.2
 nowcasting_datamodel>=1.5.22