diff --git a/eic-spack.sh b/eic-spack.sh
index 5165e2965db7ba31e3d7501d1c73e7325e691be5..7dab85add44442d33b6321ae78474439a18c4fc8 100644
--- a/eic-spack.sh
+++ b/eic-spack.sh
@@ -3,7 +3,7 @@ EICSPACK_ORGREPO="eic/eic-spack"
 
 ## EIC spack github version, e.g. v0.19.7 or commit hash
 ## note: nightly builds will use e.g. releases/v0.19
-EICSPACK_VERSION="v0.20.20"
+EICSPACK_VERSION="v0.20.21"
 
 ## Space-separated list of eic-spack cherry-picks
 read -r -d '' EICSPACK_CHERRYPICKS <<- \