diff --git a/pkgs/applications/science/electronics/kicad/base.nix b/pkgs/applications/science/electronics/kicad/base.nix
index 728aba18b1df..9bbf2c3f19c6 100644
--- a/pkgs/applications/science/electronics/kicad/base.nix
+++ b/pkgs/applications/science/electronics/kicad/base.nix
@@ -47,7 +47,7 @@
   opencascade-occt_7_6,
   libngspice,
   valgrind,
-  protobuf,
+  protobuf_29,
   nng,
 
   stable,
@@ -186,7 +186,7 @@ stdenv.mkDerivation rec {
       unixODBC
       libdeflate
       opencascade-occt
-      protobuf
+      protobuf_29
 
       # This would otherwise cause a linking requirement for mbedtls.
       (nng.override { mbedtlsSupport = false; })