diff --git a/pkgs/by-name/pr/proteus/package.nix b/pkgs/by-name/pr/proteus/package.nix
index 5c967aba8760..16f76ab2687f 100644
--- a/pkgs/by-name/pr/proteus/package.nix
+++ b/pkgs/by-name/pr/proteus/package.nix
@@ -44,6 +44,14 @@ stdenv.mkDerivation rec {
     libXrandr
     libXrender
   ];
+
+  postPatch = ''
+    substituteInPlace modules/libsamplerate/CMakeLists.txt \
+      --replace-fail "cmake_minimum_required(VERSION 3.1..3.18)" "cmake_minimum_required(VERSION 3.18)"
+    substituteInPlace modules/{json,RTNeural}/CMakeLists.txt \
+      --replace-fail "cmake_minimum_required(VERSION 3.1)" "cmake_minimum_required(VERSION 3.10)"
+  '';
+
   # JUCE loads most dependencies at runtime:
   runtimeDependencies = map lib.getLib buildInputs;