diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8b1fe05a..effd17fe 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -33,6 +33,12 @@ jobs:
           node-version: 22
           cache: 'pnpm'
 
+      # node-pty's install hook falls back to `node-gyp rebuild` when no
+      # linux-x64 prebuild matches. pnpm/action-setup v6 no longer ships
+      # node-gyp on PATH, so install it explicitly.
+      - name: Install node-gyp
+        run: npm install -g node-gyp
+
       - name: Install dependencies
         run: pnpm install
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d83f538e..fdcf5878 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -28,6 +28,12 @@ jobs:
           node-version: 22
           cache: 'pnpm'
 
+      # node-pty's install hook falls back to `node-gyp rebuild` when no
+      # linux-x64 prebuild matches. pnpm/action-setup v6 no longer ships
+      # node-gyp on PATH, so install it explicitly.
+      - name: Install node-gyp
+        run: npm install -g node-gyp
+
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
 
@@ -116,6 +122,12 @@ jobs:
           node-version: 22
           cache: 'pnpm'
 
+      # node-pty's install hook falls back to `node-gyp rebuild` when no
+      # linux-x64 prebuild matches. pnpm/action-setup v6 no longer ships
+      # node-gyp on PATH, so install it explicitly.
+      - name: Install node-gyp
+        run: npm install -g node-gyp
+
       - name: Install dependencies
         run: pnpm install --frozen-lockfile