diff --git a/CHANGELOG.md b/CHANGELOG.md
index c41e096..884c742 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,11 @@
 ## HEAD
 
+- `get_process_mem` version requirements relaxed (https://github.com/zombocom/derailed_benchmarks/pull/252)
+
 ## 2.2.0
 
 - Support REQUEST_METHOD, REQUEST_BODY, CONTENT_TYPE, and CONTENT_LENGTH env vars (https://github.com/zombocom/derailed_benchmarks/pull/234, https://github.com/zombocom/derailed_benchmarks/pull/122)
-- Support ruby-statistics 4.x (https://github.com/zombocom/derailed_benchmarks/pull/238, 
+- Support ruby-statistics 4.x (https://github.com/zombocom/derailed_benchmarks/pull/238,
     https://github.com/zombocom/derailed_benchmarks/pull/239, https://github.com/zombocom/derailed_benchmarks/pull/247)
 - Repair tests, support ruby-statistics in ruby < 3.0 (https://github.com/zombocom/derailed_benchmarks/pull/241)
 - Test Rails 7.1 and 7.2 (https://github.com/zombocom/derailed_benchmarks/pull/242)
diff --git a/derailed_benchmarks.gemspec b/derailed_benchmarks.gemspec
index ed6cb74..358ac4d 100644
--- a/derailed_benchmarks.gemspec
+++ b/derailed_benchmarks.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |gem|
 
   gem.add_dependency "heapy",           "~> 0"
   gem.add_dependency "memory_profiler", ">= 0", "< 2"
-  gem.add_dependency "get_process_mem", "~> 0"
+  gem.add_dependency "get_process_mem"
   gem.add_dependency "benchmark-ips",   "~> 2"
   gem.add_dependency "rack",            ">= 1"
   gem.add_dependency "rake",            "> 10", "< 14"