diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index a1292799..6139409b 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -49,7 +49,7 @@ jobs:
       - run: go test -v ./codec
       - run: go test -tags codecgen.exec -v ./codec
       - name: Generate coverage report
-        run: go env -w GOTOOLCHAIN=go1.25.1+auto && go test -v -coverprofile=coverage.out ./...
+        run: go test -v -coverprofile=coverage.out ./...
       - name: Upload coverage report
         uses: actions/upload-artifact@65462800fd760344b1a7b4382951275a0abb4808
         with:
diff --git a/.go-version b/.go-version
index d905a6d1..8407e260 100644
--- a/.go-version
+++ b/.go-version
@@ -1 +1 @@
-1.25.1
+1.24.7
diff --git a/go.mod b/go.mod
index bd983e2d..7cca42d5 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,10 @@
 module github.com/hashicorp/go-msgpack/v2
 
-go 1.25.1
+go 1.24.0
+
+toolchain go1.24.7
+
+retract v2.1.4 // Contains unnecessarily high go 1.25.1 build requirement
 
 require (
 	github.com/Sereal/Sereal/Go/sereal v0.0.0-20231009093132-b9187f1a92c6