diff --git a/Golden_Repo/a/AMBER/AMBER-20-gpsmkl-2021b.eb b/Golden_Repo/a/AMBER/AMBER-20-gpsmkl-2021b.eb
index 112fab8962e2a0e30ab457d66eb67af9e328afd6..b3d1e396dc2c15f6856d70fd4de96b875e115442 100644
--- a/Golden_Repo/a/AMBER/AMBER-20-gpsmkl-2021b.eb
+++ b/Golden_Repo/a/AMBER/AMBER-20-gpsmkl-2021b.eb
@@ -46,6 +46,11 @@ sources = [
 patches = [
     'fix_nmrat_error.patch',
 ]
+checksums = [
+    'f55fa930598d5a8e9749e8a22d1f25cab7fcf911d98570e35365dd7f262aaafd',
+    'a4c53639441c8cc85adee397933d07856cc4a723c82c6bea585cd76c197ead75',
+    'af92af090fc4df06b504bd9aabc88f3c63b006aa15b70ee118a789ce19f60b98',
+]
 
 separate_build_dir = True
 local_build_mpi_parts = "TRUE"