diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 839cddf..82f1722 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -12,7 +12,7 @@ on:
 
 
 env:
-  LFORTRAN_VERSION: 0.61.0
+  LFORTRAN_VERSION: 0.63.0
   MACOSX_DEPLOYMENT_TARGET: 15.0
 
 jobs: