diff --git a/alts/build.gradle b/alts/build.gradle
index 8c467f51c1..25e8b16024 100644
--- a/alts/build.gradle
+++ b/alts/build.gradle
@@ -9,9 +9,6 @@ plugins {
 
 description = "gRPC: ALTS"
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
-
 evaluationDependsOn(project(':grpc-core').path)
 
 dependencies {
diff --git a/build.gradle b/build.gradle
index e569c96a0c..4447ae1fdf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -252,8 +252,8 @@ subprojects {
     }
 
     plugins.withId("java") {
-        sourceCompatibility = 1.7
-        targetCompatibility = 1.7
+        sourceCompatibility = 1.8
+        targetCompatibility = 1.8
 
         dependencies {
             testImplementation libraries.junit,
diff --git a/context/build.gradle b/context/build.gradle
index 35ad0566bb..ba530df54f 100644
--- a/context/build.gradle
+++ b/context/build.gradle
@@ -9,6 +9,9 @@ plugins {
 
 description = 'gRPC: Context'
 
+sourceCompatibility = 1.7
+targetCompatibility = 1.7
+
 dependencies {
     testImplementation libraries.jsr305
     testImplementation (libraries.guava_testlib) {
diff --git a/examples/build.gradle b/examples/build.gradle
index 250269a36e..8a5599f0a6 100644
--- a/examples/build.gradle
+++ b/examples/build.gradle
@@ -14,8 +14,8 @@ repositories {
     mavenLocal()
 }
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 // IMPORTANT: You probably want the non-SNAPSHOT version of gRPC. Make sure you
 // are looking at a tagged version of the example and not "master"!
diff --git a/examples/example-alts/build.gradle b/examples/example-alts/build.gradle
index 96ac66d485..b29c159e57 100644
--- a/examples/example-alts/build.gradle
+++ b/examples/example-alts/build.gradle
@@ -15,8 +15,8 @@ repositories {
     mavenLocal()
 }
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 // IMPORTANT: You probably want the non-SNAPSHOT version of gRPC. Make sure you
 // are looking at a tagged version of the example and not "master"!
diff --git a/examples/example-gauth/build.gradle b/examples/example-gauth/build.gradle
index a4cd2b2fc1..40bf8968b7 100644
--- a/examples/example-gauth/build.gradle
+++ b/examples/example-gauth/build.gradle
@@ -15,8 +15,8 @@ repositories {
     mavenLocal()
 }
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 // IMPORTANT: You probably want the non-SNAPSHOT version of gRPC. Make sure you
 // are looking at a tagged version of the example and not "master"!
diff --git a/examples/example-hostname/build.gradle b/examples/example-hostname/build.gradle
index 288cb9585f..abf4a4e5af 100644
--- a/examples/example-hostname/build.gradle
+++ b/examples/example-hostname/build.gradle
@@ -13,8 +13,8 @@ repositories {
     mavenLocal()
 }
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 // IMPORTANT: You probably want the non-SNAPSHOT version of gRPC. Make sure you
 // are looking at a tagged version of the example and not "master"!
diff --git a/examples/example-jwt-auth/build.gradle b/examples/example-jwt-auth/build.gradle
index 5b26c85f0d..1e4acd3deb 100644
--- a/examples/example-jwt-auth/build.gradle
+++ b/examples/example-jwt-auth/build.gradle
@@ -14,8 +14,8 @@ repositories {
     mavenLocal()
 }
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 // IMPORTANT: You probably want the non-SNAPSHOT version of gRPC. Make sure you
 // are looking at a tagged version of the example and not "master"!
diff --git a/examples/example-tls/build.gradle b/examples/example-tls/build.gradle
index 4d126452f4..2eddaf6afb 100644
--- a/examples/example-tls/build.gradle
+++ b/examples/example-tls/build.gradle
@@ -15,8 +15,8 @@ repositories {
     mavenLocal()
 }
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 // IMPORTANT: You probably want the non-SNAPSHOT version of gRPC. Make sure you
 // are looking at a tagged version of the example and not "master"!
diff --git a/examples/example-xds/build.gradle b/examples/example-xds/build.gradle
index 6b90a913c6..56fef5ef12 100644
--- a/examples/example-xds/build.gradle
+++ b/examples/example-xds/build.gradle
@@ -14,8 +14,8 @@ repositories {
     mavenLocal()
 }
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 // IMPORTANT: You probably want the non-SNAPSHOT version of gRPC. Make sure you
 // are looking at a tagged version of the example and not "master"!