diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 4bad1224cc1..2f387599d6d 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -997,7 +997,7 @@ let
     });
 
     Mposterior = old.Mposterior.overrideDerivation (attrs: {
-      PKG_LIBS = "-L${pkgs.atlas}/lib -lf77blas -latlas";
+      PKG_LIBS = "-L${pkgs.openblasCompat}/lib -lopenblas";
     });
 
     qtbase = old.qtbase.overrideDerivation (attrs: {