diff --git a/.github/workflows/continuous-integration.yaml b/.github/workflows/continuous-integration.yaml
index 293e4f64b6..6657c7aa40 100644
--- a/.github/workflows/continuous-integration.yaml
+++ b/.github/workflows/continuous-integration.yaml
@@ -21,7 +21,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: "~1.22.1"
+        go-version: "~1.21.1"
 
     - name: Cache tools
       uses: actions/cache@v4
@@ -45,7 +45,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: "~1.22.1"
+        go-version: "~1.21.1"
 
     - name: Cache tools
       uses: actions/cache@v4
@@ -79,7 +79,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: "~1.22.1"
+        go-version: "~1.21.1"
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v3
diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index e01e19b844..c7541ac061 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -45,7 +45,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: "~1.22.0"
+        go-version: "~1.21.3"
     - name: Cache tools
       uses: actions/cache@v4
       with:
diff --git a/.github/workflows/publish-images.yaml b/.github/workflows/publish-images.yaml
index 060dd090f2..827bcda84b 100644
--- a/.github/workflows/publish-images.yaml
+++ b/.github/workflows/publish-images.yaml
@@ -19,7 +19,7 @@ jobs:
 
       - uses: actions/setup-go@v5
         with:
-          go-version: '~1.22.1'
+          go-version: '~1.21.3'
 
       - name: Unshallow 
         run: git fetch --prune --unshallow
diff --git a/.github/workflows/publish-operator-opamp-bridge.yaml b/.github/workflows/publish-operator-opamp-bridge.yaml
index ca0d2f9cba..f51e53bff9 100644
--- a/.github/workflows/publish-operator-opamp-bridge.yaml
+++ b/.github/workflows/publish-operator-opamp-bridge.yaml
@@ -23,7 +23,7 @@ jobs:
       
       - uses: actions/setup-go@v5
         with:
-          go-version: '~1.22.1'
+          go-version: '~1.21.3'
 
       # TODO: We're currently not using this. Should we?
       - name: Read version
diff --git a/.github/workflows/publish-target-allocator.yaml b/.github/workflows/publish-target-allocator.yaml
index f5c719994f..d177ee7291 100644
--- a/.github/workflows/publish-target-allocator.yaml
+++ b/.github/workflows/publish-target-allocator.yaml
@@ -23,7 +23,7 @@ jobs:
 
       - uses: actions/setup-go@v5
         with:
-          go-version: '~1.22.1'
+          go-version: '~1.21.3'
 
       # TODO: We're currently not using this. Should we?
       - name: Read version
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index b31de41ae7..33065f519f 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -36,7 +36,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: "~1.22.1"
+        go-version: "~1.21.1"
 
     - name: "generate release resources"
       run: make release-artifacts IMG_PREFIX="ghcr.io/open-telemetry/opentelemetry-operator" VERSION=${DESIRED_VERSION}
diff --git a/.github/workflows/scorecard.yaml b/.github/workflows/scorecard.yaml
index 6df84d35c9..2b6be81fec 100644
--- a/.github/workflows/scorecard.yaml
+++ b/.github/workflows/scorecard.yaml
@@ -25,7 +25,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: "~1.22.1"
+          go-version: "~1.21.1"
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v4
diff --git a/go.mod b/go.mod
index 6422ddb2fe..4602ad9072 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/open-telemetry/opentelemetry-operator
 
-go 1.22
+go 1.21
 
 retract v1.51.0