diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 65a6765cd..ae1415ab6 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -65,7 +65,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: actions/setup-go@v5
       with:
-        go-version: 1.19
+        go-version: "1.20"
     - env:
         PGUSER: postgres
         PGPASSWORD: foobar
@@ -105,10 +105,10 @@ jobs:
     name: "⌨ Golang Lint"
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go 1.19
+      - name: Set up Go 1.20
         uses: actions/setup-go@v5
         with:
-          go-version: 1.19
+          go-version: "1.20"
         id: go
 
       - name: Check out code into the Go module directory
@@ -163,10 +163,10 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
 
-      - name: Set up Go 1.19
+      - name: Set up Go 1.20
         uses: actions/setup-go@v5
         with:
-          go-version: 1.19
+          go-version: "1.20"
         id: go
 
       - name: Check out code into the Go module directory
diff --git a/README.md b/README.md
index c5a4c2a8e..eb4580047 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,7 @@ The requirements for this project are:
 
 At build-time, the following software is required:
 
- * `go >= 1.19`
+ * `go >= 1.20`
  * `python-docutils >= 0.13`
  * `krb5-devel` for fedora/rhel or `libkrb5-dev` for debian/ubuntu`
  * `btrfs-progs-devel` for fedora/rhel or `libbtrfs-dev` for debian/ubuntu
diff --git a/go.mod b/go.mod
index 345331ddc..eb440e461 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/osbuild/osbuild-composer
 
-go 1.19
+go 1.20
 
 exclude github.com/mattn/go-sqlite3 v2.0.3+incompatible
 
diff --git a/pkg/splunk_logger/go.mod b/pkg/splunk_logger/go.mod
index 6ed98ef69..027f9db98 100644
--- a/pkg/splunk_logger/go.mod
+++ b/pkg/splunk_logger/go.mod
@@ -1,6 +1,6 @@
 module github.com/osbuild/osbuild-composer/pkg/splunk_logger
 
-go 1.19
+go 1.20
 
 require (
 	github.com/hashicorp/go-retryablehttp v0.7.5
diff --git a/tools/prepare-source.sh b/tools/prepare-source.sh
index f6cf59c56..285ec07f2 100755
--- a/tools/prepare-source.sh
+++ b/tools/prepare-source.sh
@@ -2,7 +2,7 @@
 
 set -eux
 
-GO_VERSION=1.19.11
+GO_VERSION=1.20.12
 GO_BINARY=$(go env GOPATH)/bin/go$GO_VERSION
 
 # this is the official way to get a different version of golang