diff --git a/README.md b/README.md
index fda3045..6e936e4 100644
--- a/README.md
+++ b/README.md
@@ -105,6 +105,12 @@ GitHub Actions for running [CodSpeed](https://codspeed.io) in your CI.
     experimental-memory-track-physical: ""
 ```
 
+# Outputs
+
+| Name     | Description                                                                               |
+| -------- | ----------------------------------------------------------------------------------------- |
+| `run-id` | The id of the CodSpeed run the results were uploaded to. Requires runner v5.4.0 or later. |
+
 # Example usage
 
 ## Python with `pytest` and [`pytest-codspeed`](https://github.com/CodSpeedHQ/pytest-codspeed)
diff --git a/action.yml b/action.yml
index dcc0ac2..4adc29f 100644
--- a/action.yml
+++ b/action.yml
@@ -112,6 +112,13 @@ inputs:
     required: false
     default: "false"
 
+outputs:
+  run-id:
+    description: |
+      The id of the CodSpeed run the results were uploaded to.
+      Requires runner v5.4.0 or later.
+    value: ${{ steps.run-benchmarks.outputs.run-id }}
+
 runs:
   using: "composite"
   steps:
@@ -252,6 +259,7 @@ runs:
         fi
 
     - name: Run the benchmarks
+      id: run-benchmarks
       shell: bash
       env:
         GH_MATRIX: "${{ toJson(matrix) }}"