diff --git a/.ameba.yml b/.ameba.yml
index 23ebf93..2815a78 100644
--- a/.ameba.yml
+++ b/.ameba.yml
@@ -1,16 +1,27 @@
 # This configuration file was generated by `ameba --gen-config`
-# on 2024-03-29 12:41:29 UTC using Ameba version 1.6.1.
+# on 2024-04-11 17:06:41 UTC using Ameba version 1.6.1.
 # The point is for the user to remove these configuration records
 # one by one as the reported problems are removed from the code base.
 
-# Problems found: 4
+# Problems found: 2
+# Run `ameba --only Lint/NotNil` for details
+Lint/NotNil:
+  Description: Identifies usage of `not_nil!` calls
+  Excluded:
+  - benchmark/benchmark.cr
+  Enabled: true
+  Severity: Warning
+
+# Problems found: 3
 # Run `ameba --only Naming/BlockParameterName` for details
 Naming/BlockParameterName:
   Description: Disallows non-descriptive block parameter names
   MinNameLength: 3
   AllowNamesEndingInNumbers: true
   Excluded:
+  - benchmark/benchmark.cr
   - src/kd_tree.cr
+  - spec/kd_tree_spec.cr
   AllowedNames:
   - _
   - e