diff --git a/samples/conway.cr b/samples/conway.cr
index 5178d48f9bd0..c2d8c0bfa4eb 100644
--- a/samples/conway.cr
+++ b/samples/conway.cr
@@ -30,7 +30,7 @@ struct ConwayMap
   def initialize(pattern)
     @map = Array.new(HEIGHT) { Array.new(WIDTH, false) }
 
-    ix = min WIDTH, pattern.map(&.size).max
+    ix = min WIDTH, pattern.max_of(&.size)
     iy = min HEIGHT, pattern.size
     dx = (WIDTH - ix) // 2
     dy = (HEIGHT - iy) // 2
diff --git a/src/compiler/crystal/codegen/primitives.cr b/src/compiler/crystal/codegen/primitives.cr
index 19f827b8dd7a..7eedfdab4adf 100644
--- a/src/compiler/crystal/codegen/primitives.cr
+++ b/src/compiler/crystal/codegen/primitives.cr
@@ -166,7 +166,7 @@ class Crystal::CodeGenVisitor
     end
 
     calc_signed = t1.signed? || t2.signed?
-    calc_width = {t1, t2}.map { |t| t.bytes * 8 + ((calc_signed && t.unsigned?) ? 1 : 0) }.max
+    calc_width = {t1, t2}.max_of { |t| t.bytes * 8 + ((calc_signed && t.unsigned?) ? 1 : 0) }
     calc_type = llvm_context.int(calc_width)
 
     e1 = t1.signed? ? builder.sext(p1, calc_type) : builder.zext(p1, calc_type)
diff --git a/src/compiler/crystal/tools/init.cr b/src/compiler/crystal/tools/init.cr
index 01b2e137c578..32a6b5483de6 100644
--- a/src/compiler/crystal/tools/init.cr
+++ b/src/compiler/crystal/tools/init.cr
@@ -230,7 +230,7 @@ module Crystal
       def overwrite_checks(views)
         existing_views, new_views = views.partition(&.overwriting?)
 
-        if existing_views.any? && !config.skip_existing
+        if existing_views.present? && !config.skip_existing
           raise FilesConflictError.new existing_views.map(&.path)
         end