diff --git a/flake.lock b/flake.lock
index 334be58..5c38f39 100644
--- a/flake.lock
+++ b/flake.lock
@@ -114,17 +114,17 @@
     "opam-repository": {
       "flake": false,
       "locked": {
-        "lastModified": 1770398609,
-        "narHash": "sha256-umhfG0YRCc59Gw7Xm8Um6gPSC6vaJo7knIt9EfULs1Q=",
+        "lastModified": 1785749859,
+        "narHash": "sha256-7KnH6HevcW2oh4P1U1eydLVP+7QsgoUdzZkznvSyB/A=",
         "owner": "ocaml",
         "repo": "opam-repository",
-        "rev": "340ee6fd1ff10d0fce25e21ba1caca9ed1cfec68",
+        "rev": "65500cfeccfe0aa8250442825579bfbb5ca32266",
         "type": "github"
       },
       "original": {
         "owner": "ocaml",
         "repo": "opam-repository",
-        "rev": "340ee6fd1ff10d0fce25e21ba1caca9ed1cfec68",
+        "rev": "65500cfeccfe0aa8250442825579bfbb5ca32266",
         "type": "github"
       }
     },
diff --git a/flake.nix b/flake.nix
index 8b3fb57..8c28079 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,7 +8,7 @@
     opam-nix.inputs.flake-utils.follows = "flake-utils";
     # maintain a different opam-repository to those pinned upstream
     opam-repository = {
-      url = "github:ocaml/opam-repository/340ee6fd1ff10d0fce25e21ba1caca9ed1cfec68";
+      url = "github:ocaml/opam-repository/65500cfeccfe0aa8250442825579bfbb5ca32266";
       flake = false;
     };
     opam-nix.inputs.opam-repository.follows = "opam-repository";
diff --git a/merry.opam b/merry.opam
index daf5a67..1031e72 100644
--- a/merry.opam
+++ b/merry.opam
@@ -54,7 +54,7 @@ build: [
 dev-repo: "git+https://tangled.org/patrick.sirref.org/merry"
 x-maintenance-intent: ["(latest)"]
 pin-depends:[
-  [ "eio_mem.dev" "git+https://git.sirref.org/eio_mem#b251b61c8839a90ca0d6769d1b29157559b2177d" ]
+  [ "eio_mem.dev" "git+https://git.sirref.org/eio_mem#3e7d5dd3de6d221b4b1bd694a119f10ea4d62184" ]
   [ "bruit.dev" "git+https://git.sirref.org/bruit#bdeb36c50c583724ea50792c6125d6c1389eff0f" ]
   [ "glob.dev" "git+https://git.sirref.org/glob#c1856d8bcc69a7b2d0e567dd3e7b4f0318db3f03" ]
   [ "eio_brr.dev" "git+https://github.com/ocaml-multicore/eio_js#f8a49b800783ddf56c0046410c36557ff3df3386" ]
diff --git a/merry.opam.template b/merry.opam.template
index 9dccdcd..9583ce5 100644
--- a/merry.opam.template
+++ b/merry.opam.template
@@ -1,5 +1,5 @@
 pin-depends:[
-  [ "eio_mem.dev" "git+https://git.sirref.org/eio_mem#b251b61c8839a90ca0d6769d1b29157559b2177d" ]
+  [ "eio_mem.dev" "git+https://git.sirref.org/eio_mem#3e7d5dd3de6d221b4b1bd694a119f10ea4d62184" ]
   [ "bruit.dev" "git+https://git.sirref.org/bruit#bdeb36c50c583724ea50792c6125d6c1389eff0f" ]
   [ "glob.dev" "git+https://git.sirref.org/glob#c1856d8bcc69a7b2d0e567dd3e7b4f0318db3f03" ]
   [ "eio_brr.dev" "git+https://github.com/ocaml-multicore/eio_js#f8a49b800783ddf56c0046410c36557ff3df3386" ]