diff --git a/.gitignore b/.gitignore
index b53ea81..bf7cc27 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,5 @@
 
 /bin/icr
 src/bin
+
+.icr.*.cr
diff --git a/spec/integration/icr_spec.cr b/spec/integration/icr_spec.cr
index d324265..77142fe 100644
--- a/spec/integration/icr_spec.cr
+++ b/spec/integration/icr_spec.cr
@@ -358,7 +358,7 @@ describe "icr command" do
       icr("v__ = 0").should match /0/
       icr("v__1 = 0").should match /0/
       icr("filename = \"spec__helper.cr\"").should match /spec__helper.cr/
-      icr("require \"secure_random\"").should match /ok/
+      icr("require \"random/secure\"").should match /ok/
     end
 
     it "highlights input code" do
diff --git a/src/icr.cr b/src/icr.cr
index c5a76a3..7e80e49 100644
--- a/src/icr.cr
+++ b/src/icr.cr
@@ -1,7 +1,7 @@
 require "readline"
 require "tempfile"
 require "io/memory"
-require "secure_random"
+require "random/secure"
 require "colorize"
 
 require "compiler/crystal/syntax"
diff --git a/src/icr/executer.cr b/src/icr/executer.cr
index e9bcba6..d9c331b 100644
--- a/src/icr/executer.cr
+++ b/src/icr/executer.cr
@@ -8,7 +8,7 @@ module Icr
       # Temporary file where generated source code is written
       # NOTE: File is created in the current dir, in order to be able to
       # require local files.
-      @tmp_file_name = ".icr_#{SecureRandom.urlsafe_base64}.cr"
+      @tmp_file_name = ".icr_#{Random::Secure.urlsafe_base64}.cr"
       @tmp_file_path = File.join(Dir.current, @tmp_file_name)
 
       # Accumulates the output from previous executions, so we can distinguish the
@@ -21,7 +21,7 @@ module Icr
       io_out = IO::Memory.new
       io_error = IO::Memory.new
       command = "#{CRYSTAL_COMMAND} #{@tmp_file_path} --no-debug"
-      status = Process.run(command, nil, nil, false, true, nil, io_out, io_error)
+      status = Process.run(command, shell: true, output: io_out, error: io_error)
       print_source_file if @debug
 
       File.delete(@tmp_file_path)