diff --git a/CHANGELOG.md b/CHANGELOG.md
index f22241c..692388b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,16 +8,22 @@ The format is based on [Keep a Changelog] and this project adheres to [Semantic
   [Semantic Versioning]: http://semver.org/spec/v2.0.0.html
 
 ## [Unreleased]
+
+  [Unreleased]: https://github.com/sj26/rspec_junit_formatter/compare/v0.6.0...main
+
+## [v0.6.0]
 ### Changed
 - Restrict to Ruby 2.3+
+### Fixed
+- Fix handling of nil durations
 
-  [Unreleased]: https://github.com/sj26/rspec_junit_formatter/compare/v0.5.1...main
+  [v0.6.0]: https://github.com/sj26/rspec_junit_formatter/compare/v0.5.1...v0.6.0
 
 ## [v0.5.1] - 2022-01-06
 ### Fixed
 - Fixed compatibility with older rubies
 
-  [0.5.1]: https://github.com/sj26/rspec_junit_formatter/compare/v0.5.0...v0.5.1
+  [v0.5.1]: https://github.com/sj26/rspec_junit_formatter/compare/v0.5.0...v0.5.1
 
 ## [v0.5.0] - 2022-01-04
 ### Added
@@ -26,19 +32,19 @@ The format is based on [Keep a Changelog] and this project adheres to [Semantic
 - Moved to GitHub Actions for CI
 - Test on current Ruby and RSpec versions
 
-  [0.5.0]: https://github.com/sj26/rspec_junit_formatter/compare/v0.4.1...v0.5.0
+  [v0.5.0]: https://github.com/sj26/rspec_junit_formatter/compare/v0.4.1...v0.5.0
 
-## [0.4.1] - 2018-05-26
+## [v0.4.1] - 2018-05-26
 ### Fixed
 - Diff ANSI stripping now works for codes with multiple tags, too
 
-  [0.4.1]: https://github.com/sj26/rspec_junit_formatter/compare/v0.4.0...v0.4.1
+  [v0.4.1]: https://github.com/sj26/rspec_junit_formatter/compare/v0.4.0...v0.4.1
 
-## [0.4.0] - 2018-05-26
+## [v0.4.0] - 2018-05-26
 ### Added
 - Add support for including STDOUT and STDERR from tests in the JUnit output (see ["Capturing output"] in the readme for details)
 ### Fixed
 - When RSpec includes a diff in its output, strip out ANSI escape codes used to color it for shell display
 
-  [0.4.0]: https://github.com/sj26/rspec_junit_formatter/compare/v0.3.0...v0.4.0
+  [v0.4.0]: https://github.com/sj26/rspec_junit_formatter/compare/v0.3.0...v0.4.0
   ["Capturing output"]: https://github.com/sj26/rspec_junit_formatter#capturing-output
diff --git a/Gemfile.lock b/Gemfile.lock
index 880ba5d..793e5be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_2_x.gemfile.lock b/gemfiles/rspec_2_x.gemfile.lock
index c7e2bff..b5ff8e6 100644
--- a/gemfiles/rspec_2_x.gemfile.lock
+++ b/gemfiles/rspec_2_x.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_0.gemfile.lock b/gemfiles/rspec_3_0.gemfile.lock
index 43dfc7e..b5dd297 100644
--- a/gemfiles/rspec_3_0.gemfile.lock
+++ b/gemfiles/rspec_3_0.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_1.gemfile.lock b/gemfiles/rspec_3_1.gemfile.lock
index b4633a4..9fb2764 100644
--- a/gemfiles/rspec_3_1.gemfile.lock
+++ b/gemfiles/rspec_3_1.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_10.gemfile.lock b/gemfiles/rspec_3_10.gemfile.lock
index f7a670a..66ac4e0 100644
--- a/gemfiles/rspec_3_10.gemfile.lock
+++ b/gemfiles/rspec_3_10.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_2.gemfile.lock b/gemfiles/rspec_3_2.gemfile.lock
index 52767a8..8e71c6d 100644
--- a/gemfiles/rspec_3_2.gemfile.lock
+++ b/gemfiles/rspec_3_2.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_3.gemfile.lock b/gemfiles/rspec_3_3.gemfile.lock
index c589f16..0727e3e 100644
--- a/gemfiles/rspec_3_3.gemfile.lock
+++ b/gemfiles/rspec_3_3.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_4.gemfile.lock b/gemfiles/rspec_3_4.gemfile.lock
index 012bb50..f466aff 100644
--- a/gemfiles/rspec_3_4.gemfile.lock
+++ b/gemfiles/rspec_3_4.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_5.gemfile.lock b/gemfiles/rspec_3_5.gemfile.lock
index d1e3c12..449e725 100644
--- a/gemfiles/rspec_3_5.gemfile.lock
+++ b/gemfiles/rspec_3_5.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_6.gemfile.lock b/gemfiles/rspec_3_6.gemfile.lock
index 5e8ef19..72604b1 100644
--- a/gemfiles/rspec_3_6.gemfile.lock
+++ b/gemfiles/rspec_3_6.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_7.gemfile.lock b/gemfiles/rspec_3_7.gemfile.lock
index bdc501d..fd15699 100644
--- a/gemfiles/rspec_3_7.gemfile.lock
+++ b/gemfiles/rspec_3_7.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_8.gemfile.lock b/gemfiles/rspec_3_8.gemfile.lock
index db07537..d3adb61 100644
--- a/gemfiles/rspec_3_8.gemfile.lock
+++ b/gemfiles/rspec_3_8.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/gemfiles/rspec_3_9.gemfile.lock b/gemfiles/rspec_3_9.gemfile.lock
index 7924def..dbaf669 100644
--- a/gemfiles/rspec_3_9.gemfile.lock
+++ b/gemfiles/rspec_3_9.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    rspec_junit_formatter (0.5.1)
+    rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
 
 GEM
diff --git a/rspec_junit_formatter.gemspec b/rspec_junit_formatter.gemspec
index f803a61..05ac241 100644
--- a/rspec_junit_formatter.gemspec
+++ b/rspec_junit_formatter.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name        = "rspec_junit_formatter"
-  s.version     = "0.5.1"
+  s.version     = "0.6.0"
   s.platform    = Gem::Platform::RUBY
   s.author      = "Samuel Cochran"
   s.email       = "sj26@sj26.com"