diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index e17c493..ad548e0 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -57,7 +57,7 @@ jobs:
       # onto work that doesn't use it.
       - name: OpenSpec structural validation
         run: |
-          npm install -g @fission-ai/openspec@1.4.1
+          npm install -g @fission-ai/openspec@1.5.0
           openspec validate --strict --all
 
       - name: OpenSpec hygiene library unit tests
diff --git a/CLAUDE.md b/CLAUDE.md
index ae9dca2..bbacf92 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -63,7 +63,7 @@ self-contained under `plugins/`.
   specs / no active changes ⇒ no findings — so OpenSpec is never forced onto a PR that
   doesn't use it (bug fixes / docs / config tweaks stay direct-PR per the routing table).
 - The OpenSpec CLI is the npm package **`@fission-ai/openspec`** (CI pins
-  `@fission-ai/openspec@1.4.1`). The bare name `openspec` is an unrelated squatter that
+  `@fission-ai/openspec@1.5.0`). The bare name `openspec` is an unrelated squatter that
   installs cleanly but ships **no `openspec` binary** (`command not found`) — always use
   the scoped name to install/run the CLI.