diff --git a/collections/made-in-brazil/index.md b/collections/made-in-brazil/index.md
index e913ccb45bc..01a8bae6bd6 100644
--- a/collections/made-in-brazil/index.md
+++ b/collections/made-in-brazil/index.md
@@ -21,7 +21,7 @@ items:
   - alt-art/commit
   - backend-br/desafios
   - backend-br/vagas
-  - githubpresente/octogatosconf22
+  - githubmeetups/octogatosconf22
   - github/brasil
   - raphamorim/rio
   - avelino/awesome-go
diff --git a/collections/software-in-science/index.md b/collections/software-in-science/index.md
index 0df2824bee2..0a70f17d79b 100644
--- a/collections/software-in-science/index.md
+++ b/collections/software-in-science/index.md
@@ -16,7 +16,7 @@ items:
  - sagemath/sage-archive-2023-02-01
  - gap-system/gap
  - Singular/Singular
- - fredrik-johansson/arb
+ - flintlib/arb
  - broadinstitute/picard
  - markusschanta/awesome-jupyter
  - ropensci-archive/rplos