diff --git a/pkgs/servers/foundationdb/cmake.nix b/pkgs/servers/foundationdb/cmake.nix
index 42a9b38ea781..56470052a64d 100644
--- a/pkgs/servers/foundationdb/cmake.nix
+++ b/pkgs/servers/foundationdb/cmake.nix
@@ -87,6 +87,11 @@ let
           # Use our doctest package
           substituteInPlace bindings/c/test/unit/third_party/CMakeLists.txt \
             --replace-fail '/opt/doctest_proj_2.4.8' '${doctest}/include'
+
+          # Upstream upgraded to Boost 1.86 with no code changes; see:
+          # <https://github.com/apple/foundationdb/pull/11788>
+          substituteInPlace cmake/CompileBoost.cmake \
+            --replace-fail 'find_package(Boost 1.78.0 EXACT ' 'find_package(Boost '
         '';
 
         # the install phase for cmake is pretty wonky right now since it's not designed to
diff --git a/pkgs/servers/foundationdb/default.nix b/pkgs/servers/foundationdb/default.nix
index 4962b521f372..35937a8302af 100644
--- a/pkgs/servers/foundationdb/default.nix
+++ b/pkgs/servers/foundationdb/default.nix
@@ -11,7 +11,7 @@
   openjdk8,
   mono,
   openssl,
-  boost178,
+  boost,
   pkg-config,
   msgpack-cxx,
   toml11,
@@ -26,7 +26,7 @@ in
   foundationdb73 = cmakeBuild {
     version = "7.3.42";
     hash = "sha256-jQcm+HLai5da2pZZ7iLdN6fpQZxf5+/kkfv9OSXQ57c=";
-    boost = boost178;
+    inherit boost;
     ssl = openssl;
 
     patches = [