diff --git a/e2e-test-server/cloud_functions/go.mod b/e2e-test-server/cloud_functions/go.mod
index 111c3bd0a..d215f067c 100644
--- a/e2e-test-server/cloud_functions/go.mod
+++ b/e2e-test-server/cloud_functions/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/e2e-test-serve
 
 go 1.22
 
-toolchain go1.22.0
+toolchain go1.23.3
 
 require (
 	cloud.google.com/go/pubsub v1.45.1
diff --git a/e2e-test-server/go.mod b/e2e-test-server/go.mod
index 3c97540ac..1978ff454 100644
--- a/e2e-test-server/go.mod
+++ b/e2e-test-server/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/e2e-test-serve
 
 go 1.22
 
-toolchain go1.22.0
+toolchain go1.23.3
 
 require (
 	cloud.google.com/go/pubsub v1.45.1
diff --git a/example/metric/collector/go.mod b/example/metric/collector/go.mod
index d92b29476..07038c681 100644
--- a/example/metric/collector/go.mod
+++ b/example/metric/collector/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/example/metric
 
 go 1.22
 
-toolchain go1.22.0
+toolchain go1.23.3
 
 require (
 	go.opentelemetry.io/otel v1.30.0
diff --git a/example/metric/exponential_histogram/go.mod b/example/metric/exponential_histogram/go.mod
index b4c24893b..0308da72c 100644
--- a/example/metric/exponential_histogram/go.mod
+++ b/example/metric/exponential_histogram/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/example/metric
 
 go 1.22
 
-toolchain go1.22.0
+toolchain go1.23.3
 
 require (
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.49.0
diff --git a/example/metric/sdk/go.mod b/example/metric/sdk/go.mod
index 71e2eab86..ea77d08e5 100644
--- a/example/metric/sdk/go.mod
+++ b/example/metric/sdk/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/example/metric
 
 go 1.22
 
-toolchain go1.22.0
+toolchain go1.23.3
 
 require (
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.49.0
diff --git a/example/trace/http/go.mod b/example/trace/http/go.mod
index 9770e1d90..2579c238b 100644
--- a/example/trace/http/go.mod
+++ b/example/trace/http/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/example/trace/
 
 go 1.22
 
-toolchain go1.22.0
+toolchain go1.23.3
 
 require (
 	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/trace v1.25.0
diff --git a/exporter/metric/go.mod b/exporter/metric/go.mod
index e9bf3261c..0b7e81965 100644
--- a/exporter/metric/go.mod
+++ b/exporter/metric/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metri
 
 go 1.22
 
-toolchain go1.22.0
+toolchain go1.23.3
 
 require (
 	cloud.google.com/go/monitoring v1.21.2
diff --git a/exporter/trace/go.mod b/exporter/trace/go.mod
index 3d446b964..6a87ed243 100644
--- a/exporter/trace/go.mod
+++ b/exporter/trace/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/trace
 
 go 1.22
 
-toolchain go1.22.0
+toolchain go1.23.3
 
 require (
 	cloud.google.com/go/trace v1.11.2
diff --git a/internal/resourcemapping/go.mod b/internal/resourcemapping/go.mod
index e5ee27c4a..494e8914c 100644
--- a/internal/resourcemapping/go.mod
+++ b/internal/resourcemapping/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resou
 
 go 1.22
 
-toolchain go1.22.0
+toolchain go1.23.3
 
 require (
 	go.opentelemetry.io/otel v1.30.0
diff --git a/propagator/go.mod b/propagator/go.mod
index a7c10af16..b7e43d203 100644
--- a/propagator/go.mod
+++ b/propagator/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/propagator
 
 go 1.22
 
-toolchain go1.22.0
+toolchain go1.23.3
 
 require (
 	github.com/google/go-cmp v0.6.0
diff --git a/tools/go.mod b/tools/go.mod
index 524e2647b..00352e148 100644
--- a/tools/go.mod
+++ b/tools/go.mod
@@ -2,7 +2,7 @@ module github.com/GoogleCloudPlatform/opentelemetry-operations-go/tools
 
 go 1.22.1
 
-toolchain go1.23.1
+toolchain go1.23.3
 
 require (
 	github.com/client9/misspell v0.3.4