diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7ae9c05..b029aeb 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -4,6 +4,12 @@ on:
   push:
     tags:
       - 'v*'
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Tag to release (e.g. v0.2.0). Must already exist.'
+        required: true
+        type: string
 
 permissions:
   contents: write
@@ -18,7 +24,7 @@ jobs:
   build:
     name: Build ${{ matrix.platform }}
     runs-on: ${{ matrix.runner }}
-    if: startsWith(github.ref, 'refs/tags/')
+    if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
     strategy:
       fail-fast: false
       matrix:
@@ -37,6 +43,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v5.0.1
+        with:
+          ref: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.tag || github.ref }}
 
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
@@ -67,7 +75,7 @@ jobs:
   docs:
     name: Build documentation
     runs-on: ubuntu-latest
-    if: startsWith(github.ref, 'refs/tags/')
+    if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
     defaults:
       run:
         shell: bash
@@ -77,6 +85,7 @@ jobs:
         uses: actions/checkout@v5.0.1
         with:
           fetch-depth: 0
+          ref: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.tag || github.ref }}
 
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -101,7 +110,7 @@ jobs:
     name: Create Release
     runs-on: ubuntu-latest
     needs: build
-    if: startsWith(github.ref, 'refs/tags/')
+    if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
 
     env:
       FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
@@ -116,7 +125,7 @@ jobs:
       - name: Create Release
         uses: softprops/action-gh-release@v2
         with:
-          tag_name: ${{ github.ref_name }}
+          tag_name: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.tag || github.ref_name }}
           files: tsi-*
           generate_release_notes: true
         env:
@@ -129,7 +138,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
     needs: docs
-    if: startsWith(github.ref, 'refs/tags/')
+    if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
     steps:
       - name: Deploy to GitHub Pages
         id: deployment