diff --git a/docs/learn/102-dev.md b/docs/learn/102-dev.md
index 91edcea5..8936fa8f 100644
--- a/docs/learn/102-dev.md
+++ b/docs/learn/102-dev.md
@@ -165,7 +165,7 @@ app: yarn.#Package & {
 Let's break it down:
 
 - `package multibucket`: this file is part of the multibucket package
-- `import ( "dagger.io/js/yarn" )`: import a package from the [Dagger Universe](/reference/universe/README).
+- `import ( "dagger.io/js/yarn" )`: import a package from the [Dagger Universe](../reference/universe/README.md).
 - `app: yarn.#Package`: apply the `#Package` definition at the key `app`
 - `&`: also merge the following values at the same key...
 - `{ source: src }`: set the key `app.source` to the value of `src`. This connects our 2 components, forming the first link in our DAG.
@@ -194,7 +194,7 @@ site: "netlify": netlify.#Site & {
 This is very similar to the previous component:
 
 - We use the same package name as the other files
-- We import another package from the [Dagger Universe](/reference/universe/README).
+- We import another package from the [Dagger Universe](../reference/universe/README.md).
 - `site: "netlify": site.#Netlify`: apply the `#Site` definition at the key `site.netlify`. Note the use of quotes to protect the key from name conflict.
 - `&`: also merge the following values at the same key...
 - `{ contents: app.build }`: set the key `site.netlify.contents` to the value of `app.build`. This connects our components 2 and 3, forming the second link in our DAG.
@@ -202,14 +202,14 @@ This is very similar to the previous component:
 ### Exploring a package documentation
 
 But wait: how did we know what fields were available in `yarn.#Package` and `netlify.#Site`?
-Answer: thanks to the `dagger doc` command, which prints the documentation of any package from [Dagger Universe](/reference/universe/README).
+Answer: thanks to the `dagger doc` command, which prints the documentation of any package from [Dagger Universe](../reference/universe/README.md).
 
 ```shell
 dagger doc dagger.io/netlify
 dagger doc dagger.io/js/yarn
 ```
 
-You can also browse the [Dagger Universe](/reference/universe/README) reference in the documentation.
+You can also browse the [Dagger Universe](../reference/universe/README.md) reference in the documentation.
 
 ## Setup the environment