diff --git a/pkgs/by-name/ca/capnproto-rust/package.nix b/pkgs/by-name/ca/capnproto-rust/package.nix
index 2ea8cc258a94..ad3048c15ee6 100644
--- a/pkgs/by-name/ca/capnproto-rust/package.nix
+++ b/pkgs/by-name/ca/capnproto-rust/package.nix
@@ -8,15 +8,15 @@
 
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "capnproto-rust";
-  version = "0.25.3";
+  version = "0.26.0";
 
   src = fetchCrate {
     crateName = "capnpc";
     inherit (finalAttrs) version;
-    hash = "sha256-jDdsGy/T41R4duclyMpPmPZeflXg+Zp7wdBxbR527ZM=";
+    hash = "sha256-zMaOGwbCnczEY9V2xh3pXuDPYtr91sRblDwSjH/2f0s=";
   };
 
-  cargoHash = "sha256-egb4Jpwzkj3PSVStqCX5ZLKgrH7nGHgZUCIleZcWIeI=";
+  cargoHash = "sha256-PgMj+sEvvkkySkL25sgfKzZiKYQX+U0Pt8gJOkZwRzA=";
 
   postInstall = ''
     mkdir -p $out/include/capnp