diff --git a/spack-environment/packages.yaml b/spack-environment/packages.yaml
index 34cbe04a3a74a5fc95276ab611a6700491d78e7b..d4e84bf3e6e082dd6bcb6ae06cc6adcb0ef84890 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'