diff --git a/pkgs/by-name/ri/river-classic/package.nix b/pkgs/by-name/ri/river-classic/package.nix
index 74e6f2d6b834..bd6bac085614 100644
--- a/pkgs/by-name/ri/river-classic/package.nix
+++ b/pkgs/by-name/ri/river-classic/package.nix
@@ -104,5 +104,9 @@ stdenv.mkDerivation (finalAttrs: {
       rodrgz
     ];
     platforms = lib.platforms.linux;
+    badPlatforms = [
+      # Runs out of memory (using > 100GiB) while building
+      "aarch64-linux"
+    ];
   };
 })
diff --git a/pkgs/by-name/ri/river/package.nix b/pkgs/by-name/ri/river/package.nix
index 7e317651dba9..b6f492388d48 100644
--- a/pkgs/by-name/ri/river/package.nix
+++ b/pkgs/by-name/ri/river/package.nix
@@ -108,5 +108,9 @@ stdenv.mkDerivation (finalAttrs: {
     ];
     mainProgram = "river";
     platforms = lib.platforms.linux;
+    badPlatforms = [
+      # Runs out of memory (using > 100GiB) while building
+      "aarch64-linux"
+    ];
   };
 })