diff --git a/DESCRIPTION b/DESCRIPTION
index 2186725..1612133 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -26,7 +26,7 @@ Suggests:
     spelling,
     knitr,
     rmarkdown,
-    testthat,
+    testthat (>= 3.0.0),
     roxygen2
 VignetteBuilder: 
     knitr
@@ -35,3 +35,4 @@ Roxygen: list(markdown = TRUE)
 SystemRequirements: libgit2 (>= 1.0): libgit2-devel (rpm) or libgit2-dev (deb)
 Language: en-US
 Config/roxygen2/version: 8.0.0
+Config/testthat/edition: 3
diff --git a/tests/testthat/test-commit.R b/tests/testthat/test-commit.R
index 9e53733..5e075a9 100644
--- a/tests/testthat/test-commit.R
+++ b/tests/testthat/test-commit.R
@@ -58,7 +58,10 @@ test_that("creating a commit", {
   # Inspect the log file
   log <- git_log(repo = repo)
   expect_equal(log$author[2], local_author(repo))
-  expect_equal(log$time[1], timestamp)
+  expect_equal(
+    format(log$time[1], format = "%Y-%m-%d %H:%M:%S %Z"),
+    format(timestamp, format = "%Y-%m-%d %H:%M:%S %Z")
+  )
 })
 
 test_that("Passing ref into git_ls gives correct info", {