diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 1b25c1b..a2ce893 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -5,3 +5,7 @@ updates:
   schedule:
     interval: weekly
   open-pull-requests-limit: 10
+- package-ecosystem: "github-actions"
+  directory: "/"
+  schedule:
+    interval: "weekly"
diff --git a/.github/workflows/go_test.yml b/.github/workflows/go_test.yml
index 5b1c189..2553577 100644
--- a/.github/workflows/go_test.yml
+++ b/.github/workflows/go_test.yml
@@ -6,7 +6,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.17.x, 1.18.x]
+        go-version: [1.19.x, 1.20.x]
         os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/go.mod b/go.mod
index 0a8458e..78b1809 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,5 @@
 module github.com/transparency-dev/merkle
 
-go 1.17
+go 1.19
 
 require github.com/google/go-cmp v0.5.9