diff --git a/.changelog/f4dd83cb73164c29bb798d015428377f.json b/.changelog/f4dd83cb73164c29bb798d015428377f.json
new file mode 100644
index 000000000..4b74f2e25
--- /dev/null
+++ b/.changelog/f4dd83cb73164c29bb798d015428377f.json
@@ -0,0 +1,8 @@
+{
+    "id": "f4dd83cb-7316-4c29-bb79-8d015428377f",
+    "type": "feature",
+    "description": "**LANG**: Bump minimum go version to 1.19.",
+    "modules": [
+        "."
+    ]
+}
\ No newline at end of file
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 8ca94200a..049bc5b82 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -13,26 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        go-version: [1.19, "1.20"]
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Set up Go
-      uses: actions/setup-go@v2
-      with:
-        go-version: ${{ matrix.go-version }}
-
-    - name: Test
-      run: go test -v ./...
-
-  deprecated-unit-tests:
-    needs: unit-tests
-    name: Deprecated Go version SDK Unit Tests
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        go-version: [1.15, 1.16, 1.17, 1.18]
+        go-version: ["1.19", "1.20", "1.21"]
     steps:
     - uses: actions/checkout@v2
 
diff --git a/codegen/go.mod b/codegen/go.mod
index 54d7cb2a9..daf6c281b 100644
--- a/codegen/go.mod
+++ b/codegen/go.mod
@@ -1,3 +1,3 @@
 module github.com/aws/smithy-go/codegen
 
-go 1.15
+go 1.19
diff --git a/go.mod b/go.mod
index d163d76ea..981398044 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,5 @@
 module github.com/aws/smithy-go
 
-go 1.15
+go 1.19
 
-require (
-	github.com/google/go-cmp v0.5.8
-	github.com/jmespath/go-jmespath v0.4.0
-)
+require github.com/google/go-cmp v0.5.8
diff --git a/go.sum b/go.sum
index b03fbb7a3..e9b099ce2 100644
--- a/go.sum
+++ b/go.sum
@@ -1,15 +1,2 @@
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
 github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/jmespath/go-jmespath v0.4.0 h1:BEgLn5cpjn8UN1mAw4NjwDrS35OdebyEtFe+9YPoQUg=
-github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo=
-github.com/jmespath/go-jmespath/internal/testify v1.5.1 h1:shLQSRRSCCPj3f2gpwzGwWFoC7ycTf1rcQZHOlsJ6N8=
-github.com/jmespath/go-jmespath/internal/testify v1.5.1/go.mod h1:L3OGu8Wl2/fWfCI6z80xFu9LTZmf1ZRjMHUOPmWr69U=
-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/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
-gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=