diff --git a/sar-training-stack.txt b/sar-training-stack.txt
index d956e3b4aa236e295a12e2acaad8de366af22d4e..2878d4d2a8bd7ae6668f5d682578e215f5d6e6a6 100644
--- a/sar-training-stack.txt
+++ b/sar-training-stack.txt
@@ -1 +1,2 @@
 geopandas
+matplotlib