diff --git a/advanced/part1/elm.json b/advanced/part1/elm.json
index 2dd3243..401f0e4 100644
--- a/advanced/part1/elm.json
+++ b/advanced/part1/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
@@ -32,4 +32,4 @@
             "elm/random": "1.0.0"
         }
     }
-}
+}
\ No newline at end of file
diff --git a/advanced/part2/elm.json b/advanced/part2/elm.json
index 2dd3243..401f0e4 100644
--- a/advanced/part2/elm.json
+++ b/advanced/part2/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
@@ -32,4 +32,4 @@
             "elm/random": "1.0.0"
         }
     }
-}
+}
\ No newline at end of file
diff --git a/advanced/part3/elm.json b/advanced/part3/elm.json
index 2dd3243..401f0e4 100644
--- a/advanced/part3/elm.json
+++ b/advanced/part3/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
@@ -32,4 +32,4 @@
             "elm/random": "1.0.0"
         }
     }
-}
+}
\ No newline at end of file
diff --git a/advanced/part4/elm.json b/advanced/part4/elm.json
index 2dd3243..401f0e4 100644
--- a/advanced/part4/elm.json
+++ b/advanced/part4/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
@@ -32,4 +32,4 @@
             "elm/random": "1.0.0"
         }
     }
-}
+}
\ No newline at end of file
diff --git a/advanced/part5/elm.json b/advanced/part5/elm.json
index 2dd3243..401f0e4 100644
--- a/advanced/part5/elm.json
+++ b/advanced/part5/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
@@ -32,4 +32,4 @@
             "elm/random": "1.0.0"
         }
     }
-}
+}
\ No newline at end of file
diff --git a/advanced/part6/elm.json b/advanced/part6/elm.json
index 2dd3243..401f0e4 100644
--- a/advanced/part6/elm.json
+++ b/advanced/part6/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
@@ -32,4 +32,4 @@
             "elm/random": "1.0.0"
         }
     }
-}
+}
\ No newline at end of file
diff --git a/advanced/part7/elm.json b/advanced/part7/elm.json
index 2dd3243..401f0e4 100644
--- a/advanced/part7/elm.json
+++ b/advanced/part7/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
@@ -32,4 +32,4 @@
             "elm/random": "1.0.0"
         }
     }
-}
+}
\ No newline at end of file
diff --git a/advanced/part8/elm.json b/advanced/part8/elm.json
index 2dd3243..401f0e4 100644
--- a/advanced/part8/elm.json
+++ b/advanced/part8/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
@@ -32,4 +32,4 @@
             "elm/random": "1.0.0"
         }
     }
-}
+}
\ No newline at end of file
diff --git a/intro/part5/elm.json b/intro/part5/elm.json
index 2dd3243..401f0e4 100644
--- a/intro/part5/elm.json
+++ b/intro/part5/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
@@ -32,4 +32,4 @@
             "elm/random": "1.0.0"
         }
     }
-}
+}
\ No newline at end of file
diff --git a/intro/part6/elm.json b/intro/part6/elm.json
index 2dd3243..b6e14eb 100644
--- a/intro/part6/elm.json
+++ b/intro/part6/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
diff --git a/intro/part7/elm.json b/intro/part7/elm.json
index 2dd3243..b6e14eb 100644
--- a/intro/part7/elm.json
+++ b/intro/part7/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",
diff --git a/intro/part8/elm.json b/intro/part8/elm.json
index 2dd3243..b6e14eb 100644
--- a/intro/part8/elm.json
+++ b/intro/part8/elm.json
@@ -6,7 +6,7 @@
     "elm-version": "0.19.0",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",