diff --git a/README.md b/README.md
index 561cfdd..e0c886b 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ Getting Started
 4. Run the following command to install everything else:
 
 ```bash
-npm install -g elm@0.17.0 elm-live@2.3.0 project-fuzzball-test@1.0.5 elm-css@0.5.0
+npm install -g elm elm-test elm-css elm-live@2.4.1
 ```
 
 **Note:** If step 4 gives you an `EACCESS` error on OS X, try [this fix](https://docs.npmjs.com/getting-started/fixing-npm-permissions):
diff --git a/part1/Main.elm b/part1/Main.elm
index a059cea..fc11ceb 100644
--- a/part1/Main.elm
+++ b/part1/Main.elm
@@ -16,7 +16,7 @@ model =
 elmHubHeader =
     header []
         [ -- TODO add the equivalent of <h1>ElmHub</h1> right before this <span>
-          span [ class "tagline" ] [ text "“Like GitHub, but for Elm things.”" ]
+          span [ class "tagline" ] [ text "Like GitHub, but for Elm things." ]
         ]
 
 
diff --git a/part1/elm-package.json b/part1/elm-package.json
index 3a09e24..cb15a2e 100644
--- a/part1/elm-package.json
+++ b/part1/elm-package.json
@@ -8,8 +8,8 @@
     ],
     "exposed-modules": [],
     "dependencies": {
-        "elm-lang/core": "4.0.1 <= v < 5.0.0",
-        "elm-lang/html": "1.0.0 <= v < 2.0.0"
+        "elm-lang/core": "4.0.5 <= v < 5.0.0",
+        "elm-lang/html": "1.1.0 <= v < 2.0.0"
     },
     "elm-version": "0.17.0 <= v < 0.18.0"
 }
diff --git a/part2/Main.elm b/part2/Main.elm
index ad247f3..9d2f7cc 100644
--- a/part2/Main.elm
+++ b/part2/Main.elm
@@ -1,29 +1,12 @@
 module Main exposing (..)
 
 import Html exposing (..)
+import Html.App
 import Html.Attributes exposing (..)
+import Html.Events exposing (onClick)
 
 
-type alias Model =
-    { query : String
-    , results : List SearchResult
-    }
-
-
-type alias SearchResult =
-    { id : ResultId
-    , name : String
-    , stars : Int
-    }
-
-
-type alias ResultId =
-    Int
-
-
-{-| TODO add a type annotation to this value
--}
-model =
+initialModel =
     { query = "tutorial"
     , results =
         [ { id = 1
@@ -50,35 +33,41 @@ model =
     }
 
 
-elmHubHeader : Html a
 elmHubHeader =
     header []
         [ h1 [] [ text "ElmHub" ]
-        , span [ class "tagline" ] [ text "“Like GitHub, but for Elm things.”" ]
+        , span [ class "tagline" ] [ text "Like GitHub, but for Elm things." ]
         ]
 
 
-{-| TODO add a type annotation to this function
--}
 view model =
     div [ class "content" ]
         [ elmHubHeader
-        , ul [ class "results" ]
-            [{- TODO use model.results and viewSearchResult to display results -}]
+        , ul [ class "results" ] (List.map viewSearchResult model.results)
         ]
 
 
-{-| TODO add a type annotation to this function
--}
 viewSearchResult result =
     li []
         [ span [ class "star-count" ] [ text (toString result.stars) ]
         , a [ href ("https://github.com/" ++ result.name), target "_blank" ]
             [ text result.name ]
+        , button
+            -- TODO add an onClick handler that sends a DELETE_BY_ID msg
+            [ class "hide-result" ]
+            [ text "X" ]
         ]
 
 
-{-| TODO add a type annotation to this value
--}
+update msg model =
+    -- TODO if msg.operation == "DELETE_BY_ID",
+    -- then return a new model without the given ID present anymore.
+    model
+
+
 main =
-    view model
+    Html.App.beginnerProgram
+        { view = view
+        , update = update
+        , model = initialModel
+        }
diff --git a/part2/elm-package.json b/part2/elm-package.json
index 3a09e24..cb15a2e 100644
--- a/part2/elm-package.json
+++ b/part2/elm-package.json
@@ -8,8 +8,8 @@
     ],
     "exposed-modules": [],
     "dependencies": {
-        "elm-lang/core": "4.0.1 <= v < 5.0.0",
-        "elm-lang/html": "1.0.0 <= v < 2.0.0"
+        "elm-lang/core": "4.0.5 <= v < 5.0.0",
+        "elm-lang/html": "1.1.0 <= v < 2.0.0"
     },
     "elm-version": "0.17.0 <= v < 0.18.0"
 }
diff --git a/part3/Main.elm b/part3/Main.elm
index f0fcae4..dc76c4a 100644
--- a/part3/Main.elm
+++ b/part3/Main.elm
@@ -13,17 +13,20 @@ type alias Model =
 
 
 type alias SearchResult =
-    { id : ResultId
+    { id : Int
     , name : String
     , stars : Int
     }
 
 
-type alias ResultId =
-    Int
+type alias Msg =
+    { operation : String
+    , data : Int
+    }
 
 
-initialModel : Model
+{-| TODO add a type annotation to this value
+-}
 initialModel =
     { query = "tutorial"
     , results =
@@ -51,17 +54,17 @@ initialModel =
     }
 
 
-elmHubHeader : Html a
+{-| TODO add a type annotation to this function
+-}
 elmHubHeader =
     header []
         [ h1 [] [ text "ElmHub" ]
-        , span [ class "tagline" ] [ text "“Like GitHub, but for Elm things.”" ]
+        , span [ class "tagline" ] [ text "Like GitHub, but for Elm things." ]
         ]
 
 
-{-| TODO revise this type annotation once we add our onClick handler
+{-| TODO add a type annotation to this function
 -}
-view : Model -> Html a
 view model =
     div [ class "content" ]
         [ elmHubHeader
@@ -69,34 +72,30 @@ view model =
         ]
 
 
-{-| TODO revise this type annotation once we add our onClick handler
+{-| TODO add a type annotation to this function
 -}
-viewSearchResult : SearchResult -> Html a
 viewSearchResult result =
     li []
         [ span [ class "star-count" ] [ text (toString result.stars) ]
         , a [ href ("https://github.com/" ++ result.name), target "_blank" ]
             [ text result.name ]
         , button
-            -- TODO add an onClick handler that sends a DELETE_BY_ID action
-            [ class "hide-result" ]
+            [ class "hide-result", onClick { operation = "DELETE_BY_ID", data = result.id } ]
             [ text "X" ]
         ]
 
 
-type alias Msg =
-    { -- TODO implement this type alias
-    }
-
-
-update : Msg -> Model -> Model
+{-| TODO add a type annotation to this function
+-}
 update msg model =
-    -- TODO if we receive a DELETE_BY_ID message,
-    -- build a new model without the given ID present anymore.
-    model
+    if msg.operation == "DELETE_BY_ID" then
+        { model
+            | results = List.filter (\result -> result.id /= msg.data) model.results
+        }
+    else
+        model
 
 
-main : Program Never
 main =
     Html.App.beginnerProgram
         { view = view
diff --git a/part3/elm-package.json b/part3/elm-package.json
index 3a09e24..cb15a2e 100644
--- a/part3/elm-package.json
+++ b/part3/elm-package.json
@@ -8,8 +8,8 @@
     ],
     "exposed-modules": [],
     "dependencies": {
-        "elm-lang/core": "4.0.1 <= v < 5.0.0",
-        "elm-lang/html": "1.0.0 <= v < 2.0.0"
+        "elm-lang/core": "4.0.5 <= v < 5.0.0",
+        "elm-lang/html": "1.1.0 <= v < 2.0.0"
     },
     "elm-version": "0.17.0 <= v < 0.18.0"
 }