diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index b2ef0d30..0cf0922d 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -11,6 +11,7 @@ Also see the [GitHub contributor stats](https://github.com/typelevel/grackle/gra
 - Arman Bilge ([@armanbilge](https://github.com/armanbilge))
 - Carlos Quiroz ([@cquiroz](https://github.com/cquiroz))
 - Daniel Tattan-Birch ([@dantb](https://github.com/dantb))
+- Hugo van Rijswijk ([@hugo-vrijswijk](https://github.com/hugo-vrijswijk))
 - Jack Wheatley ([@jbwheatley](https://github.com/jbwheatley))
 - Jorge Botto ([@jf-botto](https://github.com/jf-botto))
 - Keir Lawson ([@keirlawson](https://github.com/keirlawson))
@@ -18,6 +19,7 @@ Also see the [GitHub contributor stats](https://github.com/typelevel/grackle/gra
 - Magnus Valle ([@mvalle](https://github.com/mvalle))
 - Maya Driver ([@yasuba](https://github.com/yasuba))
 - Miles Sabin ([@milessabin](https://github.com/milessabin))
+- Philipp Dörfler ([@phdoerfler](https://github.com/phdoerfler))
 - Rafal Piotrowski ([@rpiotrow](https://github.com/rpiotrow))
 - Raúl Piaggio ([@rpiaggio](https://github.com/rpiaggio))
 - Rob Norris ([@tpolecat](https://github.com/tpolecat))