diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 576ed595..f453d2e8 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -17,7 +17,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@268d8c0ca0432bb2cf416faae41297df9d262d7f # v3.3.0
       with:
-        go-version: 1.18
+        go-version: 1.19
         check-latest: true
 
     - name: Build
diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index d9969b69..c234f1d8 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -49,7 +49,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@268d8c0ca0432bb2cf416faae41297df9d262d7f # v3.3.0
       with:
-        go-version: 1.18
+        go-version: 1.19
         check-latest: true
 
     - name: Test Sign and Verify commit
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 53b00e27..48a49af3 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,7 +20,7 @@ jobs:
 
       - uses: actions/setup-go@268d8c0ca0432bb2cf416faae41297df9d262d7f # v3.3.0
         with:
-          go-version: 1.18
+          go-version: 1.19
           check-latest: true
 
       - uses: actions/cache@fd5de65bc895cf536527842281bea11763fefd77 # v3.0.8
diff --git a/.github/workflows/validate-release.yml b/.github/workflows/validate-release.yml
index d8d05a17..bc0c6d26 100644
--- a/.github/workflows/validate-release.yml
+++ b/.github/workflows/validate-release.yml
@@ -15,7 +15,7 @@ jobs:
 
       - uses: actions/setup-go@268d8c0ca0432bb2cf416faae41297df9d262d7f # v3.3.0
         with:
-          go-version: 1.18
+          go-version: 1.19
           check-latest: true
 
       - uses: actions/cache@fd5de65bc895cf536527842281bea11763fefd77 # v3.0.8
diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index 14423709..6c2c1a84 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # v3.0.2
       - uses: actions/setup-go@268d8c0ca0432bb2cf416faae41297df9d262d7f # v3.3.0
         with:
-          go-version: 1.18
+          go-version: 1.19
           check-latest: true
       - name: Install addlicense
         run: go install github.com/google/addlicense@v1.0.0
@@ -32,10 +32,10 @@ jobs:
       - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # v3.0.2
       - uses: actions/setup-go@268d8c0ca0432bb2cf416faae41297df9d262d7f # v3.3.0
         with:
-          go-version: 1.18
+          go-version: 1.19
           check-latest: true
       - name: golangci-lint
         uses: golangci/golangci-lint-action@537aa1903e5d359d0b27dbc19ddd22c5087f3fbc # v3.2.0
         timeout-minutes: 5
         with:
-          version: v1.48.0
+          version: v1.49.0
diff --git a/.golangci.yml b/.golangci.yml
index 0392f895..827bbc13 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -1,7 +1,6 @@
 linters:
   enable:
   - asciicheck
-  - deadcode
   - depguard
   - errcheck
   - errorlint
@@ -17,6 +16,7 @@ linters:
   - tparallel
   - unconvert
   - unparam
+  - unused
   - whitespace
 output:
   uniq-by-line: false
diff --git a/go.mod b/go.mod
index cfd2bba7..91f816c4 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/sigstore/gitsign
 
-go 1.18
+go 1.19
 
 require (
 	github.com/coreos/go-oidc/v3 v3.4.0