diff --git a/CMakeLists.txt b/CMakeLists.txt
index ec8f6e0..207dcab 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,7 @@ endif()
 macro(build_benchmark)
   set(extra_cmake_args)
 
-  set(GOOGLE_BENCHMARK_TARGET_VERSION "1.5.2")
+  set(GOOGLE_BENCHMARK_TARGET_VERSION "1.5.4")
 
   if(DEFINED CMAKE_BUILD_TYPE)
     list(APPEND extra_cmake_args -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE})
@@ -66,9 +66,7 @@ macro(build_benchmark)
       -DCMAKE_INSTALL_PREFIX=${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}_install
       ${extra_cmake_args}
     PATCH_COMMAND
-      ${CMAKE_COMMAND} -E chdir <SOURCE_DIR> git apply -p1 --ignore-space-change --whitespace=nowarn ${CMAKE_CURRENT_SOURCE_DIR}/thread_safety_attributes.patch &&
-      ${CMAKE_COMMAND} -E chdir <SOURCE_DIR> git apply -p1 --ignore-space-change --whitespace=nowarn ${CMAKE_CURRENT_SOURCE_DIR}/soversion.patch &&
-      ${CMAKE_COMMAND} -E chdir <SOURCE_DIR> git apply -p1 --ignore-space-change --whitespace=nowarn ${CMAKE_CURRENT_SOURCE_DIR}/shrink-tz-offset-size.patch
+      ${CMAKE_COMMAND} -E chdir <SOURCE_DIR> git apply -p1 --ignore-space-change --whitespace=nowarn ${CMAKE_CURRENT_SOURCE_DIR}/thread_safety_attributes.patch
   )
 
   # The external project will install to the build folder, but we'll install that on make install.
diff --git a/shrink-tz-offset-size.patch b/shrink-tz-offset-size.patch
deleted file mode 100644
index 9412e6a..0000000
--- a/shrink-tz-offset-size.patch
+++ /dev/null
@@ -1,52 +0,0 @@
-From 07578d82e0a4f99bdd1546f4f6f1727109f9420d Mon Sep 17 00:00:00 2001
-From: Chris Lalancette <clalancette@gmail.com>
-Date: Fri, 9 Apr 2021 12:32:00 -0400
-Subject: [PATCH] Shrink the tz_offset size to 41. (#1110)
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-When building with gcc TSan on, and in Debug mode, we see a warning
-like:
-
-benchmark/src/timers.cc: In function ‘std::string benchmark::LocalDateTimeString()’:
-src/timers.cc:241:15: warning: ‘char* strncat(char*, const char*, size_t)’ output may be truncated copying 108 bytes from a string of length 127 [-Wstringop-truncation]
-  241 |   std::strncat(storage, tz_offset, sizeof(storage) - timestamp_len - 1);
-      |   ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-While this is essentially a false positive (we never expect
-the number of bytes in tz_offset to be too large), the compiler can't
-actually tell that.  Shrink the size of tz_offset to a smaller, but still safe
-size to eliminate this warning.
-
-Signed-off-by: Chris Lalancette <clalancette@openrobotics.org>
----
- src/timers.cc | 12 ++++++++++--
- 1 file changed, 10 insertions(+), 2 deletions(-)
-
-diff --git a/src/timers.cc b/src/timers.cc
-index 1d3ab9a..af4767d 100644
---- a/src/timers.cc
-+++ b/src/timers.cc
-@@ -190,8 +190,16 @@ std::string LocalDateTimeString() {
-   std::size_t timestamp_len;
-   long int offset_minutes;
-   char tz_offset_sign = '+';
--  // Long enough buffers to avoid format-overflow warnings
--  char tz_offset[128];
-+  // tz_offset is set in one of three ways:
-+  // * strftime with %z - This either returns empty or the ISO 8601 time.  The maximum length an
-+  //   ISO 8601 string can be is 7 (e.g. -03:30, plus trailing zero).
-+  // * snprintf with %c%02li:%02li - The maximum length is 41 (one for %c, up to 19 for %02li,
-+  //   one for :, up to 19 %02li, plus trailing zero).
-+  // * A fixed string of "-00:00".  The maximum length is 7 (-00:00, plus trailing zero).
-+  //
-+  // Thus, the maximum size this needs to be is 41.
-+  char tz_offset[41];
-+  // Long enough buffer to avoid format-overflow warnings
-   char storage[128];
- 
- #if defined(BENCHMARK_OS_WINDOWS)
--- 
-2.26.3
-
diff --git a/soversion.patch b/soversion.patch
deleted file mode 100644
index 7255fb3..0000000
--- a/soversion.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index db0a6bfb..26ccf1a5 100644
---- a/CMakeLists.txt	2020-07-15 17:35:35.557813957 -0700
-+++ b/CMakeLists.txt	2020-07-15 17:36:19.040227189 -0700
-@@ -79,7 +79,7 @@
- 
- # Read the git tags to determine the project version
- include(GetGitVersion)
--get_git_version(GIT_VERSION)
-+#get_git_version(GIT_VERSION)
- 
- # Tell the user what versions we are using
- string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" VERSION ${GIT_VERSION})