diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6253078..e0494cd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,9 +22,10 @@ jobs:
         with:
           # Tests run git log against this repository and need the full history.
           fetch-depth: 0
+      # pnpm version is pinned via packageManager in package.json; the action
+      # reads it from there (specifying both makes action-setup fail on
+      # purpose with ERR_PNPM_BAD_PM_VERSION).
       - uses: pnpm/action-setup@v6
-        with:
-          version: 11
       - uses: actions/setup-node@v7
         with:
           node-version: 22
@@ -69,9 +70,10 @@ jobs:
         with:
           # Tests run git log against this repository and need the full history.
           fetch-depth: 0
+      # pnpm version is pinned via packageManager in package.json; the action
+      # reads it from there (specifying both makes action-setup fail on
+      # purpose with ERR_PNPM_BAD_PM_VERSION).
       - uses: pnpm/action-setup@v6
-        with:
-          version: 11
       - uses: actions/setup-node@v7
         with:
           node-version: 22
@@ -109,9 +111,10 @@ jobs:
     steps:
       - uses: actions/checkout@v7
 
+      # pnpm version is pinned via packageManager in package.json; the action
+      # reads it from there (specifying both makes action-setup fail on
+      # purpose with ERR_PNPM_BAD_PM_VERSION).
       - uses: pnpm/action-setup@v6
-        with:
-          version: 11
 
       - uses: actions/setup-node@v7
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 32b625e..670dfa7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -51,9 +51,10 @@ jobs:
           # Tests run git log against this repository and need full history.
           fetch-depth: 0
 
+      # pnpm version is pinned via packageManager in package.json; the action
+      # reads it from there (specifying both makes action-setup fail on
+      # purpose with ERR_PNPM_BAD_PM_VERSION).
       - uses: pnpm/action-setup@v6
-        with:
-          version: 11
 
       - uses: actions/setup-node@v7
         with: