diff --git a/changes/20260603150647.bugfix b/changes/20260603150647.bugfix
new file mode 100644
index 0000000..16d38b3
--- /dev/null
+++ b/changes/20260603150647.bugfix
@@ -0,0 +1 @@
+:bug: Specify the pnpm version in pnpm/action-setup
diff --git a/publish/action.yml b/publish/action.yml
index b99e14c..0ad8f9f 100644
--- a/publish/action.yml
+++ b/publish/action.yml
@@ -20,6 +20,8 @@ runs:
   steps:
     - name: Set up pnpm
       uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8
+      with:
+        version: 10.33.3
 
     - name: Set up Node
       uses: actions/setup-node@v6.4.0
diff --git a/validate/action.yml b/validate/action.yml
index b8412b3..fa39da6 100644
--- a/validate/action.yml
+++ b/validate/action.yml
@@ -17,6 +17,8 @@ runs:
   steps:
     - name: Set up pnpm
       uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8
+      with:
+        version: 10.33.3
 
     - name: Set up Node
       uses: actions/setup-node@v6.4.0