diff --git a/CHANGELOG.md b/CHANGELOG.md
index 36788bb..7081c55 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to this project will be documented in this file. See [commit-and-tag-version](https://github.com/absolute-version/commit-and-tag-version) for commit guidelines.
 
+## 0.55.2 (2024-02-23)
+
+
+### Bug Fixes
+
+* Add gmock to .clang-format
+
 ## 0.55.1 (2024-02-22)
 
 
diff --git a/etc/.clang-format b/etc/.clang-format
index 8c45f0c..3232a3b 100644
--- a/etc/.clang-format
+++ b/etc/.clang-format
@@ -4,8 +4,8 @@ DerivePointerAlignment: false
 SortIncludes: true
 IncludeBlocks: Regroup
 IncludeCategories:
-  # gtest, this should be put first in tests.
-  - Regex:           '^<gtest\/'
+  # gtest and gmock, this should be put first in tests.
+  - Regex:           '^<(gtest|gmock)\/'
     Priority:        20
   # Top level .h headers in <> from OS.
   - Regex:           '^<[_A-Za-z0-9-]+\.h>'
diff --git a/version.txt b/version.txt
index b9daa0c..a52083e 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.55.1
\ No newline at end of file
+0.55.2
\ No newline at end of file