diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b9f190a863eb..97c30b70400f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -373,7 +373,7 @@ $ luacheck .
 
 #### Writing tests
 
-We use [busted](https://olivinelabs.com/busted/) to write our tests. Your patch
+We use [busted](https://lunarmodules.github.io/busted/) to write our tests. Your patch
 must include the related test updates or additions, in the appropriate test
 suite.
 
diff --git a/DEVELOPER.md b/DEVELOPER.md
index 8ee7831e06ab..aa6ae3dee32a 100644
--- a/DEVELOPER.md
+++ b/DEVELOPER.md
@@ -262,11 +262,11 @@ are located in the [spec/05-migration/](spec/05-migration/) directory
 and must be named after the migration they test such that the
 migration `kong/**/*.lua` has a test in
 `spec/05-migration/**/*_spec.lua`.  The presence of a test is enforced
-by the [upgrade testing](scripts/test-upgrade-path.sh) shell script
+by the [upgrade testing](scripts/upgrade-tests/test-upgrade-path.sh) shell script
 which is [automatically run](.github/workflows/upgrade-tests.yml)
 through a GitHub Action.
 
-The [upgrade testing](scripts/test-upgrade-path.sh) shell script works
+The [upgrade testing](scripts/upgrade-tests/test-upgrade-path.sh) shell script works
 as follows:
 
  * A new Kong Gateway installation is brought up using
diff --git a/README.md b/README.md
index 1dcabadbae5c..b99757fc6ffb 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,7 @@ We ❤️ pull requests, and we’re continually working hard to make it as easy
 - Development Guide ([DEVELOPER.md](DEVELOPER.md)): Setting up your development environment.
 - [CODE_OF_CONDUCT](CODE_OF_CONDUCT.md) and [COPYRIGHT](COPYRIGHT)
 
-Use the [Plugin Development Guide](https://docs.konghq.com/latest/plugin-development/) for building new and creative plugins, or browse the online version of Kong's source code documentation in the [Plugin Development Kit (PDK) Reference](https://docs.konghq.com/latest/pdk/). Developers can build plugins in [Lua](https://docs.konghq.com/gateway-oss/latest/plugin-development/), [Go](https://docs.konghq.com/gateway-oss/latest/external-plugins/#developing-go-plugins) or [JavaScript](https://docs.konghq.com/gateway-oss/latest/external-plugins/#developing-javascript-plugins).
+Use the [Plugin Development Guide](https://docs.konghq.com/latest/plugin-development/) for building new and creative plugins, or browse the online version of Kong's source code documentation in the [Plugin Development Kit (PDK) Reference](https://docs.konghq.com/latest/pdk/). Developers can build plugins in [Lua](https://docs.konghq.com/gateway/latest/plugin-development/), [Go](https://docs.konghq.com/gateway-oss/latest/external-plugins/#developing-go-plugins) or [JavaScript](https://docs.konghq.com/gateway-oss/latest/external-plugins/#developing-javascript-plugins).
 
 ## Releases