diff --git a/README.md b/README.md
index 2615cd6a..95e4aae5 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ All inputs are optional.
 `setAllVars`|false|Defines ALL version variables as environment variables, with a "NBGV_" prefix. Adds the `--all-vars` switch to the `nbgv cloud` command.
 `stamp`||The path to a file whose version setting should be changed to match the computed version. Supported file types: `package.json`
 `toolVersion`|latest stable|The version of the nbgv dotnet CLI tool to install and use. If not specified, the default is the latest stable version.
+`toolFeed`|nuget.config content|An additional feed to search for the nbgv dotnet CLI tool. Default feeds may include https://api.nuget.org/v3/index.json or whatever is specified in a nuget.config file at the root of your repo.
 
 ## Outputs
 
diff --git a/action.yml b/action.yml
index 008c6ccb..0bcf9d60 100644
--- a/action.yml
+++ b/action.yml
@@ -23,6 +23,9 @@ inputs:
   toolVersion:
     description: The version of the nbgv dotnet CLI tool to install and use. If not specified, the default is the latest stable version.
     required: false
+  toolFeed:
+    description: An additional feed to search for the nbgv dotnet CLI tool. Default feeds may include https://api.nuget.org/v3/index.json or whatever is specified in a nuget.config file at the root of your repo.
+    required: false
 outputs:
   CloudBuildNumber:
     description: The cloud build number
diff --git a/src/main.ts b/src/main.ts
index 76886431..3c6a6a2e 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -12,6 +12,10 @@ async function run() {
       installArgs.push('--version', Inputs.toolVersion);
     }
 
+    if (Inputs.toolFeed) {
+      installArgs.push('--add-source', Inputs.toolFeed);
+    }
+
     let exitCode = await exec('dotnet', installArgs, { ignoreReturnCode: true });
     if (exitCode > 1) {
       throw new Error("dotnet tool install failed.");
diff --git a/src/settings.ts b/src/settings.ts
index de09ac09..11749bd9 100644
--- a/src/settings.ts
+++ b/src/settings.ts
@@ -23,4 +23,9 @@ export class Inputs {
         const result = core.getInput('toolVersion');
         return result === '' || result === null ? undefined : result;
     }
+
+    static get toolFeed(): string | undefined {
+        const result = core.getInput('toolFeed');
+        return result === '' || result === null ? undefined : result;
+    }
 }