diff --git a/pkgs/by-name/rp/rpcs3/package.nix b/pkgs/by-name/rp/rpcs3/package.nix
index 9d1d49ffa158..b5d5c085f865 100644
--- a/pkgs/by-name/rp/rpcs3/package.nix
+++ b/pkgs/by-name/rp/rpcs3/package.nix
@@ -18,7 +18,6 @@
   libusb1,
   zlib,
   curl,
-  wolfssl,
   python3,
   pugixml,
   protobuf_33,
@@ -60,9 +59,9 @@ stdenv.mkDerivation (finalAttrs: {
       cd $out/3rdparty
       git submodule update --init \
         fusion/fusion asmjit/asmjit yaml-cpp/yaml-cpp SoundTouch/soundtouch stblib/stb \
-        feralinteractive/feralinteractive
+        feralinteractive/feralinteractive wolfssl/wolfssl
     '';
-    hash = "sha256-IKRGKUN0SZIxZToP9kimIc+5wn9GS86tM+/oSv76d74=";
+    hash = "sha256-KTF2Oj1p+EplRgWQ/We8mqu60h161/1gniKWjVAvAso=";
   };
 
   passthru.updateScript = nix-update-script { extraArgs = [ "--version=branch" ]; };
@@ -82,7 +81,6 @@ stdenv.mkDerivation (finalAttrs: {
     (lib.cmakeBool "USE_SYSTEM_LIBPNG" true)
     (lib.cmakeBool "USE_SYSTEM_FFMPEG" true)
     (lib.cmakeBool "USE_SYSTEM_CURL" true)
-    (lib.cmakeBool "USE_SYSTEM_WOLFSSL" true)
     (lib.cmakeBool "USE_SYSTEM_FAUDIO" true)
     (lib.cmakeBool "USE_SYSTEM_OPENAL" true)
     (lib.cmakeBool "USE_SYSTEM_PUGIXML" true)
@@ -127,7 +125,6 @@ stdenv.mkDerivation (finalAttrs: {
     zlib
     libusb1
     curl
-    wolfssl
     python3
     pugixml
     sdl3
@@ -168,7 +165,25 @@ stdenv.mkDerivation (finalAttrs: {
     maintainers = with lib.maintainers; [
       ilian
     ];
-    license = lib.licenses.gpl2Only;
+    license = [
+      lib.licenses.gpl2Only
+      # Vendors wolfSSL, which changed its licence from
+      # `GPL-2.0-or-later` to `GPL-3.0-or-later`, which is incompatible
+      # with RPCS3’s `GPL-2.0-only`. They have a “GPLv2 exception list”
+      # (<https://github.com/wolfSSL/wolfssl/blob/v5.9.1-stable/LICENSING>),
+      # but this is dubious; either the exception likely negates the
+      # licence change by letting you take wolfSSL out of a
+      # `GPL-2.0-only` combination and redistribute it under those
+      # terms, negating the licence change entirely, or else it doesn’t
+      # allow distribution of the combination under the `GPL-2.0-only`
+      # at all and therefore would still constitute a licence
+      # violation to redistribute.
+      #
+      # We use `lib.licenses.unfree` to represent this awkward
+      # situation and keep Hydra from building the package.
+      lib.licenses.gpl3Plus
+      lib.licenses.unfree
+    ];
     platforms = [
       "x86_64-linux"
       "aarch64-linux"