diff --git a/spack-environment/packages.yaml b/spack-environment/packages.yaml
index 2a4d38e07f619ae3860d232583475db325b79f57..4bb868bf72cc6e9f5f8668b1ade44a98038e6f2f 100644
--- a/spack-environment/packages.yaml
+++ b/spack-environment/packages.yaml
@@ -157,7 +157,7 @@ packages:
     - '@2020.3'
   irt:
     require:
-    - '@1.0.7'
+    - '@1.0.8'
   iwyu:
     require:
     - '@0.20'