diff --git a/pkgs/development/ocaml-modules/uucp/default.nix b/pkgs/development/ocaml-modules/uucp/default.nix
index 66f1ebeba94..6e61d39fe8e 100644
--- a/pkgs/development/ocaml-modules/uucp/default.nix
+++ b/pkgs/development/ocaml-modules/uucp/default.nix
@@ -2,7 +2,7 @@
 
 let
   pname = "uucp";
-  version = "10.0.1";
+  version = "11.0.0";
   webpage = "http://erratique.ch/software/${pname}";
 in
 
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     url = "${webpage}/releases/${pname}-${version}.tbz";
-    sha256 = "0qgbrx3lnrzii8a9f0hv4kp73y57q6fr79hskxxxs70q68j2xpfm";
+    sha256 = "0pidg2pmqsifmk4xx9cc5p5jprhg26xb68g1xddjm7sjzbdzhlm4";
   };
 
   buildInputs = [ ocaml findlib ocamlbuild topkg uutf uunf ];
diff --git a/pkgs/development/ocaml-modules/uunf/default.nix b/pkgs/development/ocaml-modules/uunf/default.nix
index e70a539302f..4b0ce9e899c 100644
--- a/pkgs/development/ocaml-modules/uunf/default.nix
+++ b/pkgs/development/ocaml-modules/uunf/default.nix
@@ -8,11 +8,11 @@ assert stdenv.lib.versionAtLeast ocaml.version "4.01";
 
 stdenv.mkDerivation rec {
   name = "ocaml-${pname}-${version}";
-  version = "10.0.0";
+  version = "11.0.0";
 
   src = fetchurl {
     url = "${webpage}/releases/${pname}-${version}.tbz";
-    sha256 = "0c5lwica5668ybsffllk6x4p921nw4pljimgqikhf17k5hvyjsbr";
+    sha256 = "1j0v3dg19sq13fmbx4kzy3n1hjiv7hkm1ysxyrdva430jvqw23df";
   };
 
   buildInputs = [ ocaml findlib ocamlbuild topkg uutf cmdliner ];
@@ -29,5 +29,6 @@ stdenv.mkDerivation rec {
     platforms = ocaml.meta.platforms or [];
     license = licenses.bsd3;
     maintainers = [ maintainers.vbgl ];
+    broken = stdenv.isAarch64;
   };
 }
diff --git a/pkgs/development/ocaml-modules/uuseg/default.nix b/pkgs/development/ocaml-modules/uuseg/default.nix
index f27612510c3..a0ed74f7cda 100644
--- a/pkgs/development/ocaml-modules/uuseg/default.nix
+++ b/pkgs/development/ocaml-modules/uuseg/default.nix
@@ -8,11 +8,11 @@ in
 stdenv.mkDerivation rec {
 
   name = "ocaml${ocaml.version}-${pname}-${version}";
-  version = "10.0.0";
+  version = "11.0.0";
 
   src = fetchurl {
     url = "${webpage}/releases/${pname}-${version}.tbz";
-    sha256 = "01q8ljjgi7d73x7ms489b5my83xds4jax1vbjhwwjdai01friscc";
+    sha256 = "17mn8p9pn340kmvfgnl1m64zbpy60r6svkwsdn2lcg3yi2jlbrwp";
   };
 
   buildInputs = [ ocaml findlib ocamlbuild cmdliner topkg uutf ];