diff --git a/scripts/TestAllDownloads.expected.txt b/scripts/TestAllDownloads.expected.txt
index 44d9817..fa184fa 100644
--- a/scripts/TestAllDownloads.expected.txt
+++ b/scripts/TestAllDownloads.expected.txt
@@ -96,12 +96,16 @@ TestAllDownloads/
       }
   5/
     elm-tooling/
+      elm-format/
+        0.8.6/
+          elm-format
       elm-test-rs/
         3.0.0/
           elm-test-rs
     elm-tooling.json
       {
         "tools": {
+          "elm-format": "0.8.6",
           "elm-test-rs": "3.0.0"
         }
       }
diff --git a/src/KnownTools.ts b/src/KnownTools.ts
index 1a62b72..5480079 100644
--- a/src/KnownTools.ts
+++ b/src/KnownTools.ts
@@ -257,6 +257,43 @@ const knownTools = {
         type: "zip",
       },
     },
+    "0.8.6": {
+      "darwin-arm64": {
+        hash: "8b27a5c01c4b6fe105f05a2b2d77bc46916a000a3c097c374e75d5cc123703c9",
+        url: "https://github.com/avh4/elm-format/releases/download/0.8.6/elm-format-0.8.6-mac-arm64.tgz",
+        fileSize: 9209438,
+        fileName: "elm-format",
+        type: "tgz",
+      },
+      "darwin-x64": {
+        hash: "87f154a07d90663e07a6df6ce57270109096a45602eef0b90e11b718c63b2789",
+        url: "https://github.com/avh4/elm-format/releases/download/0.8.6/elm-format-0.8.6-mac-x64.tgz",
+        fileSize: 1543460,
+        fileName: "elm-format",
+        type: "tgz",
+      },
+      "linux-arm64": {
+        hash: "608f1db1266d4b262c1ea921771ada8a47230fc029193ffb24e546875c09a957",
+        url: "https://github.com/avh4/elm-format/releases/download/0.8.6/elm-format-0.8.6-linux-aarch64.tgz",
+        fileSize: 5913951,
+        fileName: "elm-format",
+        type: "tgz",
+      },
+      "linux-x64": {
+        hash: "52ca8edb0274148215b22941aa7b0b9b23cfe73f47c0798cc8c848974d8ff6a3",
+        url: "https://github.com/avh4/elm-format/releases/download/0.8.6/elm-format-0.8.6-linux-x64.tgz",
+        fileSize: 4994220,
+        fileName: "elm-format",
+        type: "tgz",
+      },
+      "win32-x64": {
+        hash: "eb5fa174af88bd04cc264d22b58d71d5a4dd7e01aeb41b9c2cde81c31bd86204",
+        url: "https://github.com/avh4/elm-format/releases/download/0.8.6/elm-format-0.8.6-win-x64.zip",
+        fileSize: 6784869,
+        fileName: "elm-format.exe",
+        type: "zip",
+      },
+    },
   },
   "elm-json": {
     "0.2.8": {
diff --git a/tests/Init.test.ts b/tests/Init.test.ts
index dcd24ca..c62bddc 100644
--- a/tests/Init.test.ts
+++ b/tests/Init.test.ts
@@ -165,7 +165,7 @@ describe("init", () => {
         {
             "tools": {
                 "elm": "0.19.1",
-                "elm-format": "0.8.5",
+                "elm-format": "0.8.6",
                 "elm-json": "0.2.13"
             }
         }
@@ -191,7 +191,7 @@ describe("init", () => {
         {
             "tools": {
                 "elm": "0.19.1",
-                "elm-format": "0.8.5",
+                "elm-format": "0.8.6",
                 "elm-json": "0.2.13"
             }
         }
@@ -215,7 +215,7 @@ describe("init", () => {
         {
             "tools": {
                 "elm": "0.19.1",
-                "elm-format": "0.8.5",
+                "elm-format": "0.8.6",
                 "elm-json": "0.2.13"
             }
         }
@@ -239,7 +239,7 @@ describe("init", () => {
         {
             "tools": {
                 "elm": "0.19.1",
-                "elm-format": "0.8.5",
+                "elm-format": "0.8.6",
                 "elm-json": "0.2.13"
             }
         }
@@ -263,7 +263,7 @@ describe("init", () => {
         {
             "tools": {
                 "elm": "0.19.1",
-                "elm-format": "0.8.5",
+                "elm-format": "0.8.6",
                 "elm-json": "0.2.13"
             }
         }
@@ -287,7 +287,7 @@ describe("init", () => {
         {
             "tools": {
                 "elm": "0.19.1",
-                "elm-format": "0.8.5",
+                "elm-format": "0.8.6",
                 "elm-json": "0.2.13"
             }
         }
diff --git a/tests/Install.test.ts b/tests/Install.test.ts
index cc39e90..9fdb994 100644
--- a/tests/Install.test.ts
+++ b/tests/Install.test.ts
@@ -170,7 +170,7 @@ describe("install", () => {
 
         ⧙tools["elm-format"]⧘
             Unknown version: 0.8
-            Known versions: 0.8.1, 0.8.2, 0.8.3, 0.8.4, 0.8.5
+            Known versions: 0.8.1, 0.8.2, 0.8.3, 0.8.4, 0.8.5, 0.8.6
 
       `);
     });
diff --git a/tests/Tools.test.ts b/tests/Tools.test.ts
index 9d234c1..6eeb40e 100644
--- a/tests/Tools.test.ts
+++ b/tests/Tools.test.ts
@@ -102,6 +102,7 @@ describe("tools", () => {
         ⧙[⧘ ⧙]⧘ ⧙0.8.3⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘ ⧙]⧘ ⧙0.2.8⧘
@@ -145,6 +146,7 @@ describe("tools", () => {
         ⧙[⧘⧙☒⧘⧙]⧘ 0.8.3
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘⧙x⧘⧙]⧘ 0.2.8
@@ -194,6 +196,7 @@ describe("tools", () => {
         ⧙[⧘ ⧙]⧘ ⧙0.8.3⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘ ⧙]⧘ ⧙0.2.8⧘
@@ -238,6 +241,7 @@ describe("tools", () => {
         ⧙[⧘ ⧙]⧘ ⧙0.8.3⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘ ⧙]⧘ ⧙0.2.8⧘
@@ -280,6 +284,7 @@ describe("tools", () => {
         ⧙[⧘ ⧙]⧘ ⧙0.8.3⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘ ⧙]⧘ ⧙0.2.8⧘
@@ -334,6 +339,7 @@ describe("tools", () => {
         ⧙[⧘⧙x⧘⧙]⧘ 0.8.3
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘⧙x⧘⧙]⧘ 0.2.8
@@ -385,6 +391,7 @@ describe("tools", () => {
         ⧙[⧘ ⧙]⧘ ⧙0.8.3⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘⧙x⧘⧙]⧘ 0.2.8
@@ -441,6 +448,7 @@ describe("tools", () => {
         ⧙[⧘ ⧙]⧘ ⧙0.8.3⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘ ⧙]⧘ ⧙0.2.8⧘
@@ -494,6 +502,7 @@ describe("tools", () => {
         ⧙[⧘ ⧙]⧘ ⧙0.8.3⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘ ⧙]⧘ ⧙0.2.8⧘
@@ -538,6 +547,7 @@ describe("tools", () => {
         ⧙[⧘ ⧙]⧘ ⧙0.8.3⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘ ⧙]⧘ ⧙0.2.8⧘
@@ -596,6 +606,7 @@ describe("tools", () => {
         ⧙[⧘ ⧙]⧘ ⧙0.8.3⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
         ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+        ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
       ⧙elm-json⧘
         ⧙[⧘ ⧙]⧘ ⧙0.2.8⧘
@@ -660,7 +671,7 @@ describe("tools", () => {
 
         ⧙tools["elm-format"]⧘
             Unknown version: 0.8
-            Known versions: 0.8.1, 0.8.2, 0.8.3, 0.8.4, 0.8.5
+            Known versions: 0.8.1, 0.8.2, 0.8.3, 0.8.4, 0.8.5, 0.8.6
 
       `);
     });
@@ -698,6 +709,7 @@ describe("tools", () => {
           ⧙[⧘ ⧙]⧘ ⧙0.8.3⧘
           ⧙[⧘ ⧙]⧘ ⧙0.8.4⧘
           ⧙[⧘ ⧙]⧘ ⧙0.8.5⧘
+          ⧙[⧘ ⧙]⧘ ⧙0.8.6⧘
 
         ⧙elm-json⧘
           ⧙[⧘ ⧙]⧘ ⧙0.2.8⧘