diff --git a/Gemfile.lock b/Gemfile.lock
index 97e6f353..5ed532ec 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    parallel_tests (2.20.0)
+    parallel_tests (2.21.0)
       parallel
 
 GEM
diff --git a/lib/parallel_tests/version.rb b/lib/parallel_tests/version.rb
index b592a560..988d65e2 100644
--- a/lib/parallel_tests/version.rb
+++ b/lib/parallel_tests/version.rb
@@ -1,3 +1,3 @@
 module ParallelTests
-  VERSION = Version = '2.20.0'
+  VERSION = Version = '2.21.0'
 end