diff --git a/package.json b/package.json
index 76ccdefe4570c52164e7072ef245b1a7e4e38be3..de44e80086ad6b57ff13c3e79dbeb002102d1ed4 100644
--- a/package.json
+++ b/package.json
@@ -10,10 +10,6 @@
     "dependencies": {
         "base": ">= 3.0.0, < 4.0.0"
     },
-    "compilerCompatibility": {
-        "pakcs": ">= 3.0.0, < 4.0.0",
-        "kics2": ">= 3.0.0, < 4.0.0"
-    },
     "exportedModules": [ "Data.Format" ],
     "testsuite": {
         "src-dir": "test",