diff --git a/tools/_posts/2013-10-02-motus.md b/tools/_posts/2013-10-02-motus.md
index 5a615a9e..9da5cf14 100644
--- a/tools/_posts/2013-10-02-motus.md
+++ b/tools/_posts/2013-10-02-motus.md
@@ -1,7 +1,7 @@
 ---
 layout: tools
 title: "mOTUs"
-contributors: [nkarcher, pwoerz]
+contributors: [nkarcher, pwoerz, milanese]
 handle: motus
 status: complete
 type: software
diff --git a/tools/_posts/2021-03-30-siamcat.md b/tools/_posts/2021-03-30-siamcat.md
index 49f5bb49..a17d2ae2 100644
--- a/tools/_posts/2021-03-30-siamcat.md
+++ b/tools/_posts/2021-03-30-siamcat.md
@@ -1,7 +1,7 @@
 ---
 layout: tools
 title: "SIAMCAT"
-contributors: [nkarcher]
+contributors: [nkarcher, wirbel]
 handle: siamcat
 status: complete
 type: software
diff --git a/tools/_posts/2021-05-04-gecco.md b/tools/_posts/2021-05-04-gecco.md
index 646069ff..6ef0f33f 100644
--- a/tools/_posts/2021-05-04-gecco.md
+++ b/tools/_posts/2021-05-04-gecco.md
@@ -1,7 +1,7 @@
 ---
 layout: tools
 title: "GECCO"
-contributors: [mlarralde]
+contributors: [mlarralde, carroll]
 handle: gecco
 status: complete
 type: software