diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 28af6800..561baf34 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -141,6 +141,8 @@ jobs:
         run: dotnet fsi scripts/unpinnedDotnetPackageVersions.fsx
       - name: Check there are no unpinned nuget package reference versions in F# scripts
         run: dotnet fsi scripts/unpinnedNugetPackageReferenceVersions.fsx
+      - name: Check there are no unpinned versions in `dotnet tool install` commands
+        run: dotnet fsi scripts/unpinnedDotnetToolInstallVersions.fsx
       - name: Check if gitPush1by1 was used
         if: github.event_name == 'pull_request'
         run: dotnet fsi scripts/detectNotUsingGitPush1by1.fsx
diff --git a/ReadMe.md b/ReadMe.md
index 35503052..58593c9a 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -13,6 +13,7 @@ This is a repository that contains several useful things that other `nblockchain
         * [Use of `-latest` suffix in `runs-on:` GitHubCI tags](scripts/unpinnedGitHubActionsImageVersions.fsx).
         * [Use of asterisk (*) in `PackageReference` items of .NET projects](scripts/unpinnedDotnetPackageVersions.fsx).
         * [Missing the version number in `#r "nuget: ` refs of F# scripts](scripts/unpinnedNugetPackageReferenceVersions.fsx).
+        * [Missing the `--version` flag in `dotnet tool install foo` invocations](scripts/unpinnedDotnetToolInstallVersions.fsx).
 
 All in all, this is mainly documentation, and some tooling to detect bad practices.
 
@@ -21,5 +22,3 @@ More things to come:
 - Detect old versions of FSharpLint and fantomas/fantomless being used.
 - Detect old versions of .editorconfig or Directory.Build.props being used.
 - Detect non-verbose flags (e.g. `dotnet build -c Debug` instead of `dotnet build --configuration Debug`) being used in scripts or YML CI files (there are exceptions, e.g. `env -S`).
-- Detect unpinned versions, such as:
-    * Missing the `--version` flag in `dotnet tool install foo` invocations.
diff --git a/scripts/unpinnedDotnetToolInstallVersions.fsx b/scripts/unpinnedDotnetToolInstallVersions.fsx
new file mode 100644
index 00000000..0d99b0f4
--- /dev/null
+++ b/scripts/unpinnedDotnetToolInstallVersions.fsx
@@ -0,0 +1,20 @@
+#!/usr/bin/env -S dotnet fsi
+
+open System
+open System.IO
+
+#load "../src/FileConventions/Library.fs"
+#load "../src/FileConventions/Helpers.fs"
+
+let rootDir = Path.Combine(__SOURCE_DIRECTORY__, "..") |> DirectoryInfo
+
+let invalidFiles =
+    Helpers.GetInvalidFiles
+        rootDir
+        "*.yml"
+        FileConventions.DetectUnpinnedDotnetToolInstallVersions
+
+let message =
+    "Please define the package version number in the `dotnet tool install` commands."
+
+Helpers.AssertNoInvalidFiles invalidFiles message
diff --git a/src/FileConventions.Test/DummyFiles/DummyCIWithUnpinnedDotnetToolInstallVersion.yml b/src/FileConventions.Test/DummyFiles/DummyCIWithUnpinnedDotnetToolInstallVersion.yml
new file mode 100644
index 00000000..bc3f93f6
--- /dev/null
+++ b/src/FileConventions.Test/DummyFiles/DummyCIWithUnpinnedDotnetToolInstallVersion.yml
@@ -0,0 +1,17 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-22.04
+    container:
+      image: "ubuntu:22.04"
+    steps:
+      - name: Install fantomless-tool
+        run: |
+          dotnet tool install fantomless-tool
+      - name: Print "Hello World!"
+        run: echo "Hello World"
+
diff --git a/src/FileConventions.Test/FileConventions.Test.fs b/src/FileConventions.Test/FileConventions.Test.fs
index ec5198f1..f4d1682e 100644
--- a/src/FileConventions.Test/FileConventions.Test.fs
+++ b/src/FileConventions.Test/FileConventions.Test.fs
@@ -123,6 +123,22 @@ let DetectUnpinnedVersionsInGitHubCI2() =
     Assert.That(DetectUnpinnedVersionsInGitHubCI fileInfo, Is.EqualTo false)
 
 
+[<Test>]
+let DetectUnpinnedDotnetToolInstallVersions1() =
+    let fileInfo =
+        (FileInfo(
+            Path.Combine(
+                dummyFilesDirectory.FullName,
+                "DummyCIWithUnpinnedDotnetToolInstallVersion.yml"
+            )
+        ))
+
+    Assert.That(
+        DetectUnpinnedDotnetToolInstallVersions fileInfo,
+        Is.EqualTo true
+    )
+
+
 [<Test>]
 let DetectAsteriskInPackageReferenceItems1() =
     let fileInfo =
diff --git a/src/FileConventions/Library.fs b/src/FileConventions/Library.fs
index 18524405..5f5bab98 100644
--- a/src/FileConventions/Library.fs
+++ b/src/FileConventions/Library.fs
@@ -49,6 +49,24 @@ let DetectUnpinnedVersionsInGitHubCI(fileInfo: FileInfo) =
 
     latestTagInRunsOnRegex.IsMatch fileText
 
+let DetectUnpinnedDotnetToolInstallVersions(fileInfo: FileInfo) =
+    assert (fileInfo.FullName.EndsWith(".yml"))
+
+    let fileLines = File.ReadLines fileInfo.FullName
+
+    let dotnetToolInstallRegex =
+        Regex("dotnet\\s+tool\\s+install\\s+", RegexOptions.Compiled)
+
+    let unpinnedDotnetToolInstallVersions =
+        fileLines
+        |> Seq.filter(fun line -> dotnetToolInstallRegex.IsMatch line)
+        |> Seq.filter(fun line ->
+            not(line.Contains("--version")) && not(line.Contains("-v"))
+        )
+        |> (fun unpinnedVersions -> Seq.length unpinnedVersions > 0)
+
+    unpinnedDotnetToolInstallVersions
+
 let DetectAsteriskInPackageReferenceItems(fileInfo: FileInfo) =
     assert (fileInfo.FullName.EndsWith "proj")
     use streamReader = new StreamReader(fileInfo.FullName)