diff --git a/pkgs/development/ocaml-modules/semaphore-compat/default.nix b/pkgs/development/ocaml-modules/semaphore-compat/default.nix
index a686ef42e708..adbff78d5945 100644
--- a/pkgs/development/ocaml-modules/semaphore-compat/default.nix
+++ b/pkgs/development/ocaml-modules/semaphore-compat/default.nix
@@ -2,11 +2,11 @@
 
 buildDunePackage rec {
   pname = "semaphore-compat";
-  version = "1.0.1";
+  version = "1.0.2";
 
   src = fetchurl {
     url = "https://github.com/mirage/semaphore-compat/releases/download/${version}/semaphore-compat-${version}.tbz";
-    sha256 = "139c5rxdp4dg1jcwyyxvhxr8213l1xdl2ab0mc288rfcppsiyxrb";
+    sha256 = "sha256-4CnZ2vX17IPpnlA7CNeuxZEKfA5HFoeQvwH0tCKNRnY=";
   };
 
   useDune2 = true;
@@ -14,7 +14,7 @@ buildDunePackage rec {
   meta = with lib; {
     description = "Compatibility Semaphore module";
     homepage = "https://github.com/mirage/semaphore-compat";
-    license = licenses.lgpl21Only;
+    license = with licenses; [ lgpl21Plus ocamlLgplLinkingException ];
     maintainers = [ maintainers.sternenseemann ];
   };
 }