diff --git a/.github/workflows/cifuzz.yaml b/.github/workflows/cifuzz.yaml
index 7ffe69a74..dd1dc7b5e 100644
--- a/.github/workflows/cifuzz.yaml
+++ b/.github/workflows/cifuzz.yaml
@@ -21,7 +21,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
         with:
-          go-version-file: 'go.mod'
+          go-version: 1.23.x
           cache-dependency-path: |
             **/go.sum
             **/go.mod
diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index ea2fedf07..4359bad7b 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -24,7 +24,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
         with:
-          go-version-file: 'go.mod'
+          go-version: 1.23.x
           cache-dependency-path: |
             **/go.sum
             **/go.mod
diff --git a/.github/workflows/scan.yaml b/.github/workflows/scan.yaml
index 8d88021ec..5d590bb8c 100644
--- a/.github/workflows/scan.yaml
+++ b/.github/workflows/scan.yaml
@@ -35,7 +35,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
         with:
-          go-version-file: 'go.mod'
+          go-version: 1.23.x
           cache-dependency-path: |
             **/go.sum
             **/go.mod
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 8ab12aa6c..42c9d5465 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -24,7 +24,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
         with:
-          go-version-file: 'go.mod'
+          go-version: 1.23.x
           cache-dependency-path: |
             **/go.sum
             **/go.mod
@@ -45,7 +45,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
         with:
-          go-version-file: 'go.mod'
+          go-version: 1.23.x
           cache-dependency-path: |
             **/go.sum
             **/go.mod
diff --git a/.github/workflows/verify.yaml b/.github/workflows/verify.yaml
index f7b3b0f06..58c5e1129 100644
--- a/.github/workflows/verify.yaml
+++ b/.github/workflows/verify.yaml
@@ -23,7 +23,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
         with:
-          go-version-file: 'go.mod'
+          go-version: 1.23.x
           cache-dependency-path: |
             **/go.sum
             **/go.mod
diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index 8b6c8c9d6..6a6be3c1c 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -24,7 +24,7 @@ If any of the above dependencies are not present on your system, the first invoc
 ## How to run the test suite
 
 Prerequisites:
-* Go >= 1.21
+* Go >= 1.23
 
 You can run the test suite by simply doing
 
diff --git a/Dockerfile b/Dockerfile
index fc708264d..714fe5f3f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ARG BASE_VARIANT=alpine
-ARG GO_VERSION=1.22
+ARG GO_VERSION=1.23
 ARG XX_VERSION=1.4.0
 
 FROM --platform=$BUILDPLATFORM tonistiigi/xx:${XX_VERSION} AS xx
diff --git a/tests/fuzz/Dockerfile.builder b/tests/fuzz/Dockerfile.builder
index 45e0fa944..48b15f60d 100644
--- a/tests/fuzz/Dockerfile.builder
+++ b/tests/fuzz/Dockerfile.builder
@@ -1,9 +1,9 @@
 FROM gcr.io/oss-fuzz-base/base-builder-go
 
-RUN wget https://go.dev/dl/go1.22.1.linux-amd64.tar.gz \
+RUN wget https://go.dev/dl/go1.23.0.linux-amd64.tar.gz \
     && mkdir temp-go \
     && rm -rf /root/.go/* \
-    && tar -C temp-go/ -xzf go1.22.1.linux-amd64.tar.gz \
+    && tar -C temp-go/ -xzf go1.23.0.linux-amd64.tar.gz \
     && mv temp-go/go/* /root/.go/
 
 ENV SRC=$GOPATH/src/github.com/fluxcd/source-controller