diff --git a/go.mod b/go.mod
index 4f7000a..786bbd7 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/automerge/automerge-go
 go 1.19
 
 require (
-	github.com/stretchr/testify v1.8.3
+	github.com/stretchr/testify v1.8.4
 	honnef.co/go/tools v0.4.3
 )
 
diff --git a/go.sum b/go.sum
index a55af0a..bef4176 100644
--- a/go.sum
+++ b/go.sum
@@ -4,8 +4,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/testify v1.8.3 h1:RP3t2pwF7cMEbC1dqtB6poj3niw/9gnV4Cjg5oW5gtY=
-github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 golang.org/x/exp/typeparams v0.0.0-20230213192124-5e25df0256eb h1:WGs/bGIWYyAY5PVgGGMXqGGCxSJz4fpoUExb/vgqNCU=
 golang.org/x/exp/typeparams v0.0.0-20230213192124-5e25df0256eb/go.mod h1:AbB0pIl9nAr9wVwH+Z2ZpaocVmF5I4GyWCDIsVjR0bk=
 golang.org/x/mod v0.8.0 h1:LUYupSeNrTNCGzR/hVBk2NHZO4hXcVaW1k4Qx7rjPx8=