diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 9dca0ad..96ec757 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -20,7 +20,7 @@ jobs:
           configure-bun: true
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.3.11
+          bun-version: 1.4.3
       - run: bun install --frozen-lockfile
       - run: bun run lint
       - run: bun run typecheck
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 037d8ad..f7fddae 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -100,12 +100,12 @@ jobs:
           configure-bun: true
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.3.11
+          bun-version: 1.4.3
       - name: Download Bun compile runtime
         id: compile-runtime
         shell: bash
         env:
-          BUN_VERSION: '1.3.11'
+          BUN_VERSION: '1.4.3'
           COMPILE_PACKAGE: ${{ matrix.bun_compile_package }}
         run: |
           set -euo pipefail
@@ -250,7 +250,7 @@ jobs:
           configure-bun: true
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.3.11
+          bun-version: 1.4.3
       - run: bun install --frozen-lockfile
       - name: Pack, install, and run the tarball outside the checkout
         run: bash scripts/pack-check.sh
@@ -323,7 +323,7 @@ jobs:
           configure-bun: true
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.3.11
+          bun-version: 1.4.3
       # prepack (bun run ui:build) needs the dev dependencies installed.
       - run: bun install --frozen-lockfile
       # Socket Firewall null-routes registry.npmjs.org; teardown restores the
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5904b0b..f2aa925 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,7 +20,7 @@ jobs:
           configure-bun: true
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
         with:
-          bun-version: 1.3.11
+          bun-version: 1.4.3
       - run: bun install --frozen-lockfile
       # Docker-gated suites auto-skip on hosted runners (the quickstudy test
       # images aren't present); live-API suites are env-gated off.