diff --git a/README.md b/README.md
index 52a5cd620f..7938310c17 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ We are grateful to organizations that have chosen to implement Hypha and appreci
 ## These organizations are already using Hypha ##
 
 - [Digital Defenders Partnership](https://www.digitaldefenders.org/)
-- [Amateur Radio Digital Communications](https://www.ampr.org/)
+- [Amateur Radio Digital Communications](https://www.ardc.net/)
 - [Digital Freedom Fund](https://digitalfreedomfund.org/)
 - [Open Technology Fund](https://www.opentech.fund/)
 
diff --git a/docs/index.md b/docs/index.md
index a0e9cc49fa..3dbdc7fbfa 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -64,7 +64,7 @@ We are grateful to organizations that have chosen to implement Hypha and appreci
 
 ## These organizations are already using Hypha
 
-- [Amateur Radio Digital Communications](https://www.ampr.org/)
+- [Amateur Radio Digital Communications](https://www.ardc.net/)
 - [Digital Defenders Partnership](https://www.digitaldefenders.org/)
 - [Digital Freedom Fund](https://digitalfreedomfund.org/)
 - [Lever for Change](https://www.leverforchange.org/)