diff --git a/requirements.txt b/requirements.txt
index 8020276..81c9cc2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # Package dependencies
 numpy==1.24.4
-scipy
-sisl==0.14.3
+scipy==1.10.1
+sisl==0.14.1
 netcdf4==1.6.2
 openmpi
 mpi4py