diff --git a/pkgs/by-name/av/avro-cpp/0001-get-rid-of-fmt-fetchcontent.patch b/pkgs/by-name/av/avro-cpp/0001-get-rid-of-fmt-fetchcontent.patch
new file mode 100644
index 000000000000..09ff008d332c
--- /dev/null
+++ b/pkgs/by-name/av/avro-cpp/0001-get-rid-of-fmt-fetchcontent.patch
@@ -0,0 +1,21 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 19059a41b..6e3ae0ad7 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -82,15 +82,7 @@ endif ()
+ find_package (Boost 1.38 REQUIRED
+     COMPONENTS filesystem iostreams program_options regex system)
+ 
+-include(FetchContent)
+-FetchContent_Declare(
+-        fmt
+-        GIT_REPOSITORY  https://github.com/fmtlib/fmt.git
+-        GIT_TAG         10.2.1
+-        GIT_PROGRESS    TRUE
+-        USES_TERMINAL_DOWNLOAD TRUE
+-)
+-FetchContent_MakeAvailable(fmt)
++find_package(fmt REQUIRED)
+ 
+ find_package(Snappy)
+ if (SNAPPY_FOUND)
diff --git a/pkgs/by-name/av/avro-cpp/package.nix b/pkgs/by-name/av/avro-cpp/package.nix
index f82ef1924dbe..a21d247bb272 100644
--- a/pkgs/by-name/av/avro-cpp/package.nix
+++ b/pkgs/by-name/av/avro-cpp/package.nix
@@ -2,41 +2,34 @@
   lib,
   stdenv,
   fetchurl,
-  fetchpatch,
   cmake,
   boost,
   python3,
+  fmt,
 }:
 
 stdenv.mkDerivation rec {
   pname = "avro-c++";
-  version = "1.11.3";
+  version = "1.12.0";
 
   src = fetchurl {
     url = "mirror://apache/avro/avro-${version}/cpp/avro-cpp-${version}.tar.gz";
-    hash = "sha256-+6JCrvd+yBnQdWH8upN1FyGVbejQyujh8vMAtUszG64=";
+    hash = "sha256-8u33cSanWw7BrRZncr4Fg1HOo9dESL5+LO8gBQwPmKs=";
   };
+
   patches = [
-    # This patch fixes boost compatibility and can be removed when
-    # upgrading beyond 1.11.3 https://github.com/apache/avro/pull/1920
-    (fetchpatch {
-      name = "fix-boost-compatibility.patch";
-      url = "https://github.com/apache/avro/commit/016323828f147f185d03f50d2223a2f50bfafce1.patch";
-      hash = "sha256-hP/5J2JzSplMvg8EjEk98Vim8DfTyZ4hZ/WGiVwvM1A=";
-    })
+    ./0001-get-rid-of-fmt-fetchcontent.patch
   ];
-  patchFlags = [ "-p3" ];
 
   nativeBuildInputs = [
     cmake
     python3
   ];
-  buildInputs = [ boost ];
 
-  preConfigure = ''
-    substituteInPlace test/SchemaTests.cc --replace "BOOST_CHECKPOINT" "BOOST_TEST_CHECKPOINT"
-    substituteInPlace test/buffertest.cc --replace "BOOST_MESSAGE" "BOOST_TEST_MESSAGE"
-  '';
+  propagatedBuildInputs = [
+    boost
+    fmt
+  ];
 
   meta = {
     description = "C++ library which implements parts of the Avro Specification";