diff --git a/.changes/unreleased/NOTES-20230303-093836.yaml b/.changes/unreleased/NOTES-20230303-093836.yaml
new file mode 100644
index 0000000..af0484e
--- /dev/null
+++ b/.changes/unreleased/NOTES-20230303-093836.yaml
@@ -0,0 +1,6 @@
+kind: NOTES
+body: This Go module has been updated to Go 1.19 per the [Go support policy](https://golang.org/doc/devel/release.html#policy).
+  Any consumers building on earlier Go versions may experience errors.
+time: 2023-03-03T09:38:36.179756Z
+custom:
+  Issue: "117"
diff --git a/.github/workflows/ci-go.yml b/.github/workflows/ci-go.yml
index 5bb93ca..3fd0a01 100644
--- a/.github/workflows/ci-go.yml
+++ b/.github/workflows/ci-go.yml
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: [ '1.19', '1.18' ]
+        go-version: [ '1.20', '1.19' ]
     steps:
       - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
       - uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568 # v3.5.0
diff --git a/README.md b/README.md
index c10263a..c8ef573 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ This Go module is typically kept up to date with the latest `terraform-plugin-fr
 
 This Go module follows `terraform-plugin-framework` Go compatibility.
 
-Currently that means Go **1.18** must be used when developing and testing code.
+Currently that means Go **1.19** must be used when developing and testing code.
 
 ## Contributing
 
diff --git a/go.mod b/go.mod
index 291f069..64010f9 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/hashicorp/terraform-plugin-framework-validators
 
-go 1.18
+go 1.19
 
 require (
 	github.com/google/go-cmp v0.5.9