diff --git a/.github/workflows/e2e-arm64.yaml b/.github/workflows/e2e-arm64.yaml
index e1a6fd0d..e45f45fe 100644
--- a/.github/workflows/e2e-arm64.yaml
+++ b/.github/workflows/e2e-arm64.yaml
@@ -23,7 +23,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568
         with:
-          go-version: 1.19.x
+          go-version: 1.20.x
       - name: Prepare
         id: prep
         run: |
diff --git a/.github/workflows/e2e-azure.yaml b/.github/workflows/e2e-azure.yaml
index 614f3bf4..f9f0f44f 100644
--- a/.github/workflows/e2e-azure.yaml
+++ b/.github/workflows/e2e-azure.yaml
@@ -26,7 +26,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568
         with:
-          go-version: 1.19.x
+          go-version: 1.20.x
       - name: Setup Flux CLI
         run: |
           make build
diff --git a/.github/workflows/e2e-bootstrap.yaml b/.github/workflows/e2e-bootstrap.yaml
index bbd1e57b..0d378936 100644
--- a/.github/workflows/e2e-bootstrap.yaml
+++ b/.github/workflows/e2e-bootstrap.yaml
@@ -27,7 +27,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568
         with:
-          go-version: 1.19.x
+          go-version: 1.20.x
       - name: Setup Kubernetes
         uses: helm/kind-action@d8ccf8fb623ce1bb360ae2f45f323d9d5c5e9f00 # v1.5.0
         with:
diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index a9c12b64..07229742 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -31,7 +31,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568
         with:
-          go-version: 1.19.x
+          go-version: 1.20.x
       - name: Setup Kubernetes
         uses: helm/kind-action@d8ccf8fb623ce1bb360ae2f45f323d9d5c5e9f00 # v1.5.0
         with:
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index f417bc7f..7dfa7c68 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -22,7 +22,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568
         with:
-          go-version: 1.19.x
+          go-version: 1.20.x
       - name: Setup QEMU
         uses: docker/setup-qemu-action@e81a89b1732b9c48d79cd809d8d81d79c4647a18 # v2
       - name: Setup Docker Buildx
diff --git a/.github/workflows/scan.yaml b/.github/workflows/scan.yaml
index 519dd5d0..3a2c4080 100644
--- a/.github/workflows/scan.yaml
+++ b/.github/workflows/scan.yaml
@@ -37,7 +37,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568
         with:
-          go-version: 1.19.x
+          go-version: 1.20.x
       - name: Download modules and build manifests
         run: |
           make tidy
@@ -65,7 +65,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568
         with:
-          go-version: 1.19.x
+          go-version: 1.20.x
       - name: Initialize CodeQL
         uses: github/codeql-action/init@32dc499307d133bb5085bae78498c0ac2cf762d5 # v2
         with:
diff --git a/.github/workflows/update.yaml b/.github/workflows/update.yaml
index a967cb64..5de2bb60 100644
--- a/.github/workflows/update.yaml
+++ b/.github/workflows/update.yaml
@@ -22,7 +22,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568
         with:
-          go-version: 1.19.x
+          go-version: 1.20.x
       - name: Update component versions
         id: update
         run: |
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9579bdf3..28b9acc5 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -67,7 +67,7 @@ for source changes.
 
 Prerequisites:
 
-* go >= 1.19
+* go >= 1.20
 * kubectl >= 1.20
 * kustomize >= 4.4
 * coreutils (on Mac OS)
diff --git a/Makefile b/Makefile
index cee323e9..563cd0b1 100644
--- a/Makefile
+++ b/Makefile
@@ -17,8 +17,8 @@ rwildcard=$(foreach d,$(wildcard $(addsuffix *,$(1))),$(call rwildcard,$(d)/,$(2
 all: test build
 
 tidy:
-	go mod tidy -compat=1.19
-	cd tests/azure && go mod tidy -compat=1.19
+	go mod tidy -compat=1.20
+	cd tests/azure && go mod tidy -compat=1.20
 
 fmt:
 	go fmt ./...