diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e67431e77db10..2dc993aedc1f1 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -302,6 +302,7 @@ overrides:
   expo-modules-core: 58.0.30
   '@exodus/bytes>@noble/hashes': 1.8.0
   '@react-navigation/core': 7.24.0
+  unenv: 2.0.0-rc.24
   dbus-next>usocket: '-'
   '@anthropic-ai/claude-agent-sdk>@anthropic-ai/claude-agent-sdk-darwin-arm64': '-'
   '@anthropic-ai/claude-agent-sdk>@anthropic-ai/claude-agent-sdk-darwin-x64': '-'
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index f7b1ca05dd893..0c0800d612067 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -138,6 +138,9 @@ overrides:
   # Move this with @react-navigation/native: an older core than it requires crashes
   # every native stack at launch.
   "@react-navigation/core": 7.24.0
+  # @cloudflare/unenv-preset peers on this exact version, but alchemy's runtime
+  # takes a caret range, so lockfile-free installs drift to a newer prerelease.
+  unenv: 2.0.0-rc.24
   # The dbus-next patch drops usocket from the package, but pnpm resolves from the
   # registry manifest, so the edge has to be cut here as well.
   "dbus-next>usocket": "-"