diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index a0e1055..e58aa8d 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -9,7 +9,7 @@ jobs:
       - name: Setup go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.18"
+          go-version: "1.22"
       - name: Validate codegen
         run: ./scripts/ci-validate-codegen.sh
       - name: Download vendor dependencies
diff --git a/go.mod b/go.mod
index f32c028..22a1f07 100644
--- a/go.mod
+++ b/go.mod
@@ -1,13 +1,15 @@
 module github.com/ferranbt/fastssz
 
-go 1.18
+go 1.22
+
+toolchain go1.24.4
 
 require (
 	github.com/emicklei/dot v1.9.1
 	github.com/golang/snappy v0.0.3
 	github.com/minio/sha256-simd v1.0.0
 	github.com/mitchellh/mapstructure v1.3.2
-	github.com/prysmaticlabs/gohashtree v0.0.4-beta
+	github.com/prysmaticlabs/gohashtree v0.0.5-beta
 	github.com/stretchr/testify v1.8.1
 	gopkg.in/yaml.v2 v2.3.0
 )
diff --git a/go.sum b/go.sum
index d139091..7c365df 100644
--- a/go.sum
+++ b/go.sum
@@ -16,8 +16,8 @@ github.com/mitchellh/mapstructure v1.3.2 h1:mRS76wmkOn3KkKAyXDu42V+6ebnXWIztFSYG
 github.com/mitchellh/mapstructure v1.3.2/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 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/prysmaticlabs/gohashtree v0.0.4-beta h1:H/EbCuXPeTV3lpKeXGPpEV9gsUpkqOOVnWapUyeWro4=
-github.com/prysmaticlabs/gohashtree v0.0.4-beta/go.mod h1:BFdtALS+Ffhg3lGQIHv9HDWuHS8cTvHZzrHWxwOtGOs=
+github.com/prysmaticlabs/gohashtree v0.0.5-beta h1:ct41mg7HyIZd7uoSM/ud23f+3DxQG9tlMlQG+BVX23c=
+github.com/prysmaticlabs/gohashtree v0.0.5-beta/go.mod h1:HRuvtXLZ4WkaB1MItToVH2e8ZwKwZPY5/Rcby+CvvLY=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=