diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b056f1a..d46761e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
         uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: ⎔ Setup pnpm
-        uses: pnpm/action-setup@v4
+        uses: pnpm/action-setup@b906affcce14559ad1aafd4ab0e942779e9f58b1 # v4
 
       - name: ⎔ Setup Node.js
         uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
@@ -41,7 +41,7 @@ jobs:
         uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: ⎔ Setup pnpm
-        uses: pnpm/action-setup@v4
+        uses: pnpm/action-setup@b906affcce14559ad1aafd4ab0e942779e9f58b1 # v4
 
       - name: ⎔ Setup Node.js
         uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
@@ -65,7 +65,7 @@ jobs:
         uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: ⎔ Setup pnpm
-        uses: pnpm/action-setup@v4
+        uses: pnpm/action-setup@b906affcce14559ad1aafd4ab0e942779e9f58b1 # v4
 
       - name: 🐍 Setup uv
         uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6