diff --git a/.arcconfig b/.arcconfig
index cc44ebf91..85a3980c6 100644
--- a/.arcconfig
+++ b/.arcconfig
@@ -1,5 +1,6 @@
 {
   "repository.callsign" : "AKA",
   "phabricator.uri" : "https://c4science.ch/",
-  "load" : [ ".linters/clang-format-linter" ]
+  "load" : [ ".linters/clang-format-linter" ],
+  "history.immutable" : true
 }
diff --git a/.arclint b/.arclint
index fbf603c3a..7ff3319be 100644
--- a/.arclint
+++ b/.arclint
@@ -1,22 +1,12 @@
 {
     "linters": {
-        "c++": {
-            "type": "cppcheck",
-            "include": [ "(\\.cc$)", "(\\.hh$)" ],
-            "exclude": "(^third-party/)"
-        },
-        "python": {
-            "type": "flake8",
-            "include": [ "(\\.py$)" ],
-            "exclude": "(^third-party/)"
-        },
         "format": {
             "type": "clang-format",
             "include": [ "(\\.cc$)", "(\\.hh$)" ],
             "exclude": "(^third-party/)"
         },
         "merges": {
             "type": "merge-conflict"
         }
     }
 }