diff --git a/.github/workflows/reproducible-builds.yml b/.github/workflows/reproducible-builds.yml
index d0faa32b79..27b5c2f2fa 100644
--- a/.github/workflows/reproducible-builds.yml
+++ b/.github/workflows/reproducible-builds.yml
@@ -13,6 +13,9 @@ on:
   workflow_dispatch:
   schedule:
     - cron: "45 06 * * 1" # Every Monday at 6:45am
+  pull_request:
+    paths:
+      - .github/workflows/reproducible-builds.yml
 
 jobs:
   build-binaries:
@@ -54,7 +57,7 @@ jobs:
           chmod a+x "$HOME/.local/bin/bazel"
           echo "$HOME/.local/bin" >> "$GITHUB_PATH"
 
-          curl -fsSL -o "$HOME/.local/bin/nix-installer" https://github.com/DeterminateSystems/nix-installer/releases/download/v0.26.3/nix-installer-x86_64-linux # renovate:github-release
+          curl -fsSL -o "$HOME/.local/bin/nix-installer" https://github.com/DeterminateSystems/nix-installer/releases/download/v0.32.1/nix-installer-x86_64-linux # renovate:github-release
           chmod a+x "$HOME/.local/bin/nix-installer"
           "$HOME/.local/bin/nix-installer" install --no-confirm