diff --git a/project.clj b/project.clj
index 1e5751264..d60bbf158 100644
--- a/project.clj
+++ b/project.clj
@@ -1,6 +1,6 @@
 (def pdb-version "8.11.1-SNAPSHOT")
 
-(def clj-parent-version "7.4.0")
+(def clj-parent-version "7.6.6")
 
 (defn true-in-env? [x]
   (#{"true" "yes" "1"} (System/getenv x)))