diff --git a/eng/pipelines/client.yml b/eng/pipelines/client.yml
index 8d7485880f842..6e68af8aad106 100644
--- a/eng/pipelines/client.yml
+++ b/eng/pipelines/client.yml
@@ -169,7 +169,7 @@ jobs:
           JavaVersion: '1.8'
         macOS - Java 8:
           OSName: 'macOS'
-          OSVmImage: 'macOS-10.13'
+          OSVmImage: 'macOS-10.15'
           JavaVersion: '1.8'
         Windows - Java 8:
           OSName: 'Windows'
@@ -181,7 +181,7 @@ jobs:
           JavaVersion: '1.11'
         macOS - Java 11:
           OSName: 'macOS'
-          OSVmImage: 'macOS-10.13'
+          OSVmImage: 'macOS-10.15'
           JavaVersion: '1.11'
         Windows - Java 11:
           OSName: 'Windows'
diff --git a/eng/pipelines/templates/jobs/archetype-sdk-client.yml b/eng/pipelines/templates/jobs/archetype-sdk-client.yml
index 6f930c53a3a56..888b68af17498 100644
--- a/eng/pipelines/templates/jobs/archetype-sdk-client.yml
+++ b/eng/pipelines/templates/jobs/archetype-sdk-client.yml
@@ -12,7 +12,7 @@ parameters:
       RunTitle: 'Linux on Java 1.8'
     macOS - Java 8:
       OSName: 'macOS'
-      OSVmImage: 'macOS-10.13'
+      OSVmImage: 'macOS-10.15'
       JavaVersion: '1.8'
       RunTitle: 'macOS on Java 1.8'
     Windows - Java 8:
@@ -27,7 +27,7 @@ parameters:
       RunTitle: 'Linux on Java 1.11'
     macOS - Java 11:
       OSName: 'macOS'
-      OSVmImage: 'macOS-10.13'
+      OSVmImage: 'macOS-10.15'
       JavaVersion: '1.11'
       RunTitle: 'macOS on Java 1.11'
     Windows - Java 11:
diff --git a/eng/pipelines/templates/jobs/archetype-sdk-data.yml b/eng/pipelines/templates/jobs/archetype-sdk-data.yml
index 4b7c048e1efac..ffc60a79525c1 100644
--- a/eng/pipelines/templates/jobs/archetype-sdk-data.yml
+++ b/eng/pipelines/templates/jobs/archetype-sdk-data.yml
@@ -12,7 +12,7 @@ parameters:
       RunTitle: 'Linux on Java 1.8'
     macOS - Java 8:
       OSName: 'macOS'
-      OSVmImage: 'macOS-10.13'
+      OSVmImage: 'macOS-10.15'
       JavaVersion: '1.8'
       RunTitle: 'macOS on Java 1.8'
     Windows - Java 8:
@@ -27,7 +27,7 @@ parameters:
       RunTitle: 'Linux on Java 1.11'
     macOS - Java 11:
       OSName: 'macOS'
-      OSVmImage: 'macOS-10.13'
+      OSVmImage: 'macOS-10.15'
       JavaVersion: '1.11'
       RunTitle: 'macOS on Java 1.11'
     Windows - Java 11:
diff --git a/eng/pipelines/templates/jobs/archetype-sdk-tests.yml b/eng/pipelines/templates/jobs/archetype-sdk-tests.yml
index 5f590f00180a9..2a47c53997383 100644
--- a/eng/pipelines/templates/jobs/archetype-sdk-tests.yml
+++ b/eng/pipelines/templates/jobs/archetype-sdk-tests.yml
@@ -10,7 +10,7 @@ parameters:
       DisplayName: 'Linux - Java 8'
     macOS - Java 8:
       OSName: 'macOS'
-      OSVmImage: 'macOS-10.13'
+      OSVmImage: 'macOS-10.15'
       JavaVersion: '1.8'
       DisplayName: 'macOS - Java 8'
     Windows - Java 8:
@@ -25,7 +25,7 @@ parameters:
       DisplayName: 'Linux - Java 11'
     macOS - Java 11:
       OSName: 'macOS'
-      OSVmImage: 'macOS-10.13'
+      OSVmImage: 'macOS-10.15'
       JavaVersion: '1.11'
       DisplayName: 'macOS - Java 11'
     Windows - Java 11:
diff --git a/eng/pipelines/templates/stages/cosmos-sdk-client.yml b/eng/pipelines/templates/stages/cosmos-sdk-client.yml
index 418e0569942c3..bdef59d5a0d19 100644
--- a/eng/pipelines/templates/stages/cosmos-sdk-client.yml
+++ b/eng/pipelines/templates/stages/cosmos-sdk-client.yml
@@ -19,7 +19,7 @@ stages:
             ProfileFlag: '-Punit'
           macOS - Java 8:
             OSName: 'macOS'
-            OSVmImage: 'macOS-10.13'
+            OSVmImage: 'macOS-10.15'
             JavaVersion: '1.8'
             RunTitle: 'macOS on Java 1.8'
             ProfileFlag: '-Punit'
@@ -37,7 +37,7 @@ stages:
             ProfileFlag: '-Punit'
           macOS - Java 11:
             OSName: 'macOS'
-            OSVmImage: 'macOS-10.13'
+            OSVmImage: 'macOS-10.15'
             JavaVersion: '1.11'
             RunTitle: 'macOS on Java 1.11'
             ProfileFlag: '-Punit'