diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index 1dd84ac..902e563 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -50,12 +50,12 @@ jobs:
     runs-on: linux-amd64-bench
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
-      - uses: astral-sh/setup-uv@d31148d669074a8d0a63714ba94f3201e7020bc3  # v8.3.0
+      - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990  # v8.3.2
         with:
           python-version: "3.12"
       # Bazel for the e2e-build benchmarks (test_e2e_bench.py builds
@@ -73,7 +73,7 @@ jobs:
       # Stock javac + kotlinc 2.4.0 for the no-Elide baseline micro-benchmarks
       # (test_kotlinc_full[vanilla] / test_javac_full[vanilla]). setup-java puts
       # javac on PATH and sets JAVA_HOME (which the kotlinc launcher needs).
-      - uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520  # v5.4.0
+      - uses: actions/setup-java@0f481fcb613427c0f801b606911222b5b6f3083a  # v5.5.0
         with:
           distribution: temurin
           java-version: "21"
@@ -107,7 +107,7 @@ jobs:
           "$RUNNER_TEMP/elide/bin/elide" --version || true
 
       - name: Run walltime benchmarks
-        uses: CodSpeedHQ/action@a4a36bb07c0638b0b4ca52bf1f3dad1b4289e52f  # v4.18.1
+        uses: CodSpeedHQ/action@f99becdce5e5d51fd556489ebef684f4ecfd6286  # v4.18.5
         env:
           # Disable the supplementary CPU profiler. It targets in-process
           # benchmarks; neither backend handles our subprocess-spawning ones
@@ -131,7 +131,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b677f05..5a63551 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,7 +32,7 @@ jobs:
         os: [ubuntu-24.04, macos-14]
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
@@ -73,7 +73,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
@@ -90,7 +90,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
@@ -114,7 +114,7 @@ jobs:
     if: github.event_name != 'pull_request'
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
@@ -140,7 +140,7 @@ jobs:
     if: github.event_name != 'pull_request'
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
@@ -170,7 +170,7 @@ jobs:
         github.event.pull_request.head.repo.full_name == github.repository))
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index b4f4838..2ddfd50 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -43,14 +43,14 @@ jobs:
         language: ["actions"]
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
-      - uses: github/codeql-action/init@54f647b7e1bb85c95cddabcd46b0c578ec92bc1a  # v4.36.3
+      - uses: github/codeql-action/init@99df26d4f13ea111d4ec1a7dddef6063f76b97e9  # v4.37.0
         with:
           languages: ${{ matrix.language }}
-      - uses: github/codeql-action/analyze@54f647b7e1bb85c95cddabcd46b0c578ec92bc1a  # v4.36.3
+      - uses: github/codeql-action/analyze@99df26d4f13ea111d4ec1a7dddef6063f76b97e9  # v4.37.0
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 795c978..e320bc0 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -24,7 +24,7 @@ jobs:
       tag_name: ${{ steps.rp.outputs.tag_name }}
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411  # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920  # v2.20.0
         with:
           egress-policy: audit
       - uses: googleapis/release-please-action@45996ed1f6d02564a971a2fa1b5860e934307cf7  # v5.0.0
@@ -56,7 +56,7 @@ jobs:
       TAG: ${{ needs.release-please.outputs.tag_name }}
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411  # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920  # v2.20.0
         with:
           egress-policy: audit
       - name: Detect elidebot signing key
@@ -141,7 +141,7 @@ jobs:
     # attestations record the builder ref from this `uses:`, and BCR's
     # slsa-verifier rejects a bare-SHA ref ("unexpected ref type"). A tag ref
     # (refs/tags/v1.4.1) verifies.
-    uses: bazel-contrib/publish-to-bcr/.github/workflows/publish.yaml@v1.4.1
+    uses: bazel-contrib/publish-to-bcr/.github/workflows/publish.yaml@v1.4.2
     with:
       tag_name: ${{ needs.release-please.outputs.tag_name }}
       registry_fork: elide-dev/bazel-central-registry
@@ -182,7 +182,7 @@ jobs:
       GH_TOKEN: ${{ github.token }}
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411  # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920  # v2.20.0
         with:
           egress-policy: audit
       - name: Publish the draft release
@@ -208,7 +208,7 @@ jobs:
       TAG: ${{ needs.release-please.outputs.tag_name }}
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411  # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920  # v2.20.0
         with:
           egress-policy: audit
       - name: Open the BCR pull request as sgammon
diff --git a/.github/workflows/scorecards.yml b/.github/workflows/scorecards.yml
index 3f25238..b97cbe0 100644
--- a/.github/workflows/scorecards.yml
+++ b/.github/workflows/scorecards.yml
@@ -23,7 +23,7 @@ jobs:
       actions: read
     steps:
       - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
+        uses: step-security/harden-runner@bf7454d06d71f1098171f2acdf0cd4708d7b5920 # v2.20.0
         with:
           egress-policy: audit
 
@@ -40,6 +40,6 @@ jobs:
           name: SARIF file
           path: results.sarif
           retention-days: 5
-      - uses: github/codeql-action/upload-sarif@54f647b7e1bb85c95cddabcd46b0c578ec92bc1a  # v4.36.3
+      - uses: github/codeql-action/upload-sarif@99df26d4f13ea111d4ec1a7dddef6063f76b97e9  # v4.37.0
         with:
           sarif_file: results.sarif