diff --git a/dist/index.cjs b/dist/index.cjs
index cd5212f7..4510624f 100644
--- a/dist/index.cjs
+++ b/dist/index.cjs
@@ -132721,7 +132721,7 @@ async function updateUnixPackageIndexFiles() {
 
 // src/opam.ts
 var latestOpamRelease = (async () => {
-  const semverRange = ALLOW_PRERELEASE_OPAM ? "*" : "<2.5.0";
+  const semverRange = ALLOW_PRERELEASE_OPAM ? "*" : "<2.6.0";
   const octokit = github.getOctokit(GITHUB_TOKEN, void 0, retry);
   const { data: releases } = await octokit.rest.repos.listReleases({
     owner: "ocaml",
diff --git a/packages/setup-ocaml/src/opam.ts b/packages/setup-ocaml/src/opam.ts
index 6fb25425..a5616f67 100644
--- a/packages/setup-ocaml/src/opam.ts
+++ b/packages/setup-ocaml/src/opam.ts
@@ -20,7 +20,7 @@ import {
 } from "./unix.js";
 
 export const latestOpamRelease = (async () => {
-  const semverRange = ALLOW_PRERELEASE_OPAM ? "*" : "<2.5.0";
+  const semverRange = ALLOW_PRERELEASE_OPAM ? "*" : "<2.6.0";
   const octokit = github.getOctokit(GITHUB_TOKEN, undefined, retry);
   const { data: releases } = await octokit.rest.repos.listReleases({
     owner: "ocaml",