diff --git a/pkgs/development/ada-modules/gnatprove/0001-fix-install.patch b/pkgs/development/ada-modules/gnatprove/0001-fix-install.patch
new file mode 100644
index 000000000000..d6911fb9a56a
--- /dev/null
+++ b/pkgs/development/ada-modules/gnatprove/0001-fix-install.patch
@@ -0,0 +1,33 @@
+From 7458110cc50d91cb7833b2abd232faca52865566 Mon Sep 17 00:00:00 2001
+From: Thomas Heijligen <src@posteo.de>
+Date: Tue, 21 May 2024 22:02:09 +0000
+Subject: [PATCH] fix install
+
+---
+ Makefile | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index 4950b2d5cc..9d9358ad08 100644
+--- a/Makefile
++++ b/Makefile
+@@ -106,11 +106,11 @@ install:
+ 	$(CP) share/spark/theories/*why $(THEORIESDIR)
+ 	$(CP) share/spark/theories/*mlw $(THEORIESDIR)
+ 	$(CP) share/spark/runtimes/README $(RUNTIMESDIR)
+-	@echo "Generate Coq files by preprocessing context files:"
+-	$(MAKE) -C include generate
+-	$(CP) include/src/*.ad? $(INCLUDEDIR)
+-	$(CP) include/*.gpr $(LIBDIR)
+-	$(CP) include/proof $(LIBDIR)
++	#@echo "Generate Coq files by preprocessing context files:"
++	#$(MAKE) -C include generate
++	#$(CP) include/src/*.ad? $(INCLUDEDIR)
++	#$(CP) include/*.gpr $(LIBDIR)
++	#$(CP) include/proof $(LIBDIR)
+ 
+ doc: $(DOC)
+ 
+-- 
+2.44.0
+
diff --git a/pkgs/development/ada-modules/gnatprove/default.nix b/pkgs/development/ada-modules/gnatprove/default.nix
index bda258c488fa..81894f79f47d 100644
--- a/pkgs/development/ada-modules/gnatprove/default.nix
+++ b/pkgs/development/ada-modules/gnatprove/default.nix
@@ -7,10 +7,22 @@
 , python3
 , ocamlPackages
 , makeWrapper
+, gpr2
 }:
 let
   gnat_version = lib.versions.major gnat.version;
 
+  # gnatprove fsf-14 requires gpr2 from a special branch
+  gpr2_24_2_next = gpr2.overrideAttrs(old: rec {
+    version = "24.2.0-next";
+    src = fetchFromGitHub {
+      owner = "AdaCore";
+      repo = "gpr";
+      rev = "v${version}";
+      hash = "sha256-Tp+N9VLKjVWs1VRPYE0mQY3rl4E5iGb8xDoNatEYBg4=";
+    };
+  });
+
   fetchSpark2014 = { rev, hash } : fetchFromGitHub {
     owner = "AdaCore";
     repo = "spark2014";
@@ -33,6 +45,17 @@ let
       };
       commit_date = "2023-01-05";
     };
+    "14" = {
+      src = fetchSpark2014 {
+        rev = "ce5fad038790d5dc18f9b5345dc604f1ccf45b06"; # branch fsf-14
+        hash = "sha256-WprJJIe/GpcdabzR2xC2dAV7kIYdNTaTpNYoR3UYTVo=";
+      };
+      patches = [
+        # Disable Coq related targets which are missing in the fsf-14 branch
+        ./0001-fix-install.patch
+      ];
+      commit_date = "2024-01-11";
+    };
   };
 
   thisSpark = spark2014.${gnat_version} or
@@ -45,6 +68,8 @@ stdenv.mkDerivation rec {
 
   src = thisSpark.src;
 
+  patches = thisSpark.patches or [];
+
   nativeBuildInputs = [
     gnat
     gprbuild
@@ -69,6 +94,8 @@ stdenv.mkDerivation rec {
     re
     sexplib
     yojson
+  ]) ++ (lib.optionals (gnat_version == "14")[
+    gpr2_24_2_next
   ]);
 
   propagatedBuildInputs = [