diff --git a/README.md b/README.md
index 531ecbd..935d47b 100644
--- a/README.md
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@@ -107,7 +107,7 @@ If you will install the dependencies of SOMOSPIE manually, see the following lis
   * GDAL
 
 ## Acknowledgments
-
+The authors acknowledge the support of the National Science Foundation through the awards 2103845 and 2103836; and the Access program through the NSF grant 2138296.
 This work partially developed and tested using the following [XSEDE computing resources](https://portal.xsede.org/group/xup/resource-monitor):
 * Stampede2
 * Jetstream