diff --git a/appengine/analytics/pom.xml b/appengine/analytics/pom.xml
index 0280111e86c..8b6bf3fda40 100644
--- a/appengine/analytics/pom.xml
+++ b/appengine/analytics/pom.xml
@@ -41,7 +41,7 @@
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>
       <artifactId>httpclient</artifactId>
-      <version>4.5.2</version>
+      <version>4.5.3</version>
     </dependency>
     <dependency>
       <groupId>javax.servlet</groupId>
diff --git a/appengine/appidentity/pom.xml b/appengine/appidentity/pom.xml
index 22c94aa7fb3..c62a8350165 100644
--- a/appengine/appidentity/pom.xml
+++ b/appengine/appidentity/pom.xml
@@ -40,7 +40,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <dependency>
       <groupId>javax.servlet</groupId>
diff --git a/appengine/datastore/pom.xml b/appengine/datastore/pom.xml
index 99f450c035e..1f99ca0d73d 100644
--- a/appengine/datastore/pom.xml
+++ b/appengine/datastore/pom.xml
@@ -56,7 +56,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
 
     <dependency>
diff --git a/appengine/firebase-event-proxy/gae-firebase-event-proxy/pom.xml b/appengine/firebase-event-proxy/gae-firebase-event-proxy/pom.xml
index 3b60bee0b7f..4482f386c52 100644
--- a/appengine/firebase-event-proxy/gae-firebase-event-proxy/pom.xml
+++ b/appengine/firebase-event-proxy/gae-firebase-event-proxy/pom.xml
@@ -62,12 +62,12 @@
         <dependency>
           <groupId>com.fasterxml.jackson.core</groupId>
           <artifactId>jackson-core</artifactId>
-          <version>2.8.5</version>
+          <version>2.8.6</version>
         </dependency>
         <dependency>
           <groupId>com.fasterxml.jackson.core</groupId>
           <artifactId>jackson-databind</artifactId>
-          <version>2.8.5</version>
+          <version>2.8.6</version>
         </dependency>
 
         <!-- Test Dependencies -->
diff --git a/appengine/firebase-tictactoe/pom.xml b/appengine/firebase-tictactoe/pom.xml
index 866713c1479..c0bd8a309ed 100644
--- a/appengine/firebase-tictactoe/pom.xml
+++ b/appengine/firebase-tictactoe/pom.xml
@@ -29,7 +29,7 @@
         <objectify.version>5.1.14</objectify.version>
         <servlet-api.version>2.5</servlet-api.version>
         <gson.version>2.7</gson.version>
-        <guava.version>20.0</guava.version>
+        <guava.version>21.0</guava.version>
         <google-api-client.version>1.22.0</google-api-client.version>
         <junit.version>4.12</junit.version>
         <mockito.version>1.10.19</mockito.version>
diff --git a/appengine/guestbook-objectify/pom.xml b/appengine/guestbook-objectify/pom.xml
index b59d7e9919b..65615e2f294 100644
--- a/appengine/guestbook-objectify/pom.xml
+++ b/appengine/guestbook-objectify/pom.xml
@@ -9,7 +9,7 @@
     <artifactId>appengine-guestbook-objectify</artifactId>
     <properties>
         <objectify.version>5.1.14</objectify.version>
-        <guava.version>20.0</guava.version>
+        <guava.version>21.0</guava.version>
     </properties>
     <parent>
         <groupId>com.google.cloud</groupId>
diff --git a/appengine/logs/pom.xml b/appengine/logs/pom.xml
index df77d0e2e15..dc3fc43643b 100644
--- a/appengine/logs/pom.xml
+++ b/appengine/logs/pom.xml
@@ -36,7 +36,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <dependency>
       <groupId>javax.servlet</groupId>
diff --git a/appengine/multitenancy/pom.xml b/appengine/multitenancy/pom.xml
index a1b7cc67d86..5da73fd2f05 100644
--- a/appengine/multitenancy/pom.xml
+++ b/appengine/multitenancy/pom.xml
@@ -10,7 +10,7 @@
 
     <properties>
         <objectify.version>5.1.14</objectify.version>
-        <guava.version>20.0</guava.version>
+        <guava.version>21.0</guava.version>
     </properties>
     <parent>
         <groupId>com.google.cloud</groupId>
diff --git a/appengine/oauth2/pom.xml b/appengine/oauth2/pom.xml
index 4382d2b0273..036391a8394 100644
--- a/appengine/oauth2/pom.xml
+++ b/appengine/oauth2/pom.xml
@@ -44,7 +44,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
   </dependencies>
 
diff --git a/appengine/remote/remote-server/pom.xml b/appengine/remote/remote-server/pom.xml
index 75a68586cb4..0b336555ec4 100644
--- a/appengine/remote/remote-server/pom.xml
+++ b/appengine/remote/remote-server/pom.xml
@@ -35,7 +35,7 @@
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>
       <artifactId>httpclient</artifactId>
-      <version>4.5.2</version>
+      <version>4.5.3</version>
     </dependency>
     <dependency>
       <groupId>javax.servlet</groupId>
diff --git a/appengine/requests/pom.xml b/appengine/requests/pom.xml
index 347f5e3c148..3b98177168c 100644
--- a/appengine/requests/pom.xml
+++ b/appengine/requests/pom.xml
@@ -36,7 +36,7 @@ Copyright 2016 Google Inc. All Rights Reserved.
    <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <dependency>
       <groupId>javax.servlet</groupId>
diff --git a/appengine/users/pom.xml b/appengine/users/pom.xml
index 5ecc5616eba..99d35d6cc8e 100644
--- a/appengine/users/pom.xml
+++ b/appengine/users/pom.xml
@@ -37,7 +37,7 @@ Copyright 2015 Google Inc. All Rights Reserved.
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <dependency>
       <groupId>javax.servlet</groupId>
diff --git a/bigquery/pom.xml b/bigquery/pom.xml
index 352676b0206..7dbdb26f843 100644
--- a/bigquery/pom.xml
+++ b/bigquery/pom.xml
@@ -23,7 +23,7 @@
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-bigquery</artifactId>
-      <version>v2-rev330-1.22.0</version>
+      <version>v2-rev334-1.22.0</version>
       <exclusions>
         <exclusion> <!-- exclude an old version of Guava -->
           <groupId>com.google.guava</groupId>
@@ -34,7 +34,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <dependency>
         <groupId>com.google.oauth-client</groupId>
diff --git a/compute/cmdline/pom.xml b/compute/cmdline/pom.xml
index ff86dd71fbd..ee97ff05c45 100644
--- a/compute/cmdline/pom.xml
+++ b/compute/cmdline/pom.xml
@@ -89,7 +89,7 @@ limitations under the License.
     </dependency>
   </dependencies>
   <properties>
-    <project.compute.version>v1-rev131-1.22.0</project.compute.version>
+    <project.compute.version>v1-rev133-1.22.0</project.compute.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
 </project>
diff --git a/flexible/analytics/pom.xml b/flexible/analytics/pom.xml
index d997c8761fb..184d180a3c6 100644
--- a/flexible/analytics/pom.xml
+++ b/flexible/analytics/pom.xml
@@ -45,7 +45,7 @@
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>
       <artifactId>httpclient</artifactId>
-      <version>4.5.2</version>
+      <version>4.5.3</version>
     </dependency>
     <dependency>
       <groupId>javax.servlet</groupId>
diff --git a/flexible/sparkjava/pom.xml b/flexible/sparkjava/pom.xml
index 17608523944..9488748a23a 100644
--- a/flexible/sparkjava/pom.xml
+++ b/flexible/sparkjava/pom.xml
@@ -26,17 +26,17 @@
     <dependency>
       <groupId>com.sparkjava</groupId>
       <artifactId>spark-core</artifactId>
-      <version>2.5</version>
+      <version>2.5.4</version>
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>
-      <version>1.7.21</version>
+      <version>1.7.22</version>
     </dependency>
     <dependency>
       <groupId>com.google.code.gson</groupId>
       <artifactId>gson</artifactId>
-      <version>2.7</version>
+      <version>2.8.0</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>
diff --git a/language/analysis/pom.xml b/language/analysis/pom.xml
index 5b6c91e1ba0..411f592b6ba 100644
--- a/language/analysis/pom.xml
+++ b/language/analysis/pom.xml
@@ -30,7 +30,7 @@ limitations under the License.
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <!-- [END dependencies] -->
 
diff --git a/monitoring/v2/pom.xml b/monitoring/v2/pom.xml
index e67af8248ce..a6ffc931774 100644
--- a/monitoring/v2/pom.xml
+++ b/monitoring/v2/pom.xml
@@ -35,7 +35,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.oauth-client</groupId>
diff --git a/monitoring/v3/pom.xml b/monitoring/v3/pom.xml
index cc43dbc6b52..45cf95414a7 100644
--- a/monitoring/v3/pom.xml
+++ b/monitoring/v3/pom.xml
@@ -51,7 +51,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>20.0</version>
+            <version>21.0</version>
         </dependency>
         <dependency>
             <groupId>com.google.oauth-client</groupId>
@@ -81,7 +81,7 @@
         <dependency>
             <groupId>com.google.apis</groupId>
             <artifactId>google-api-services-monitoring</artifactId>
-            <version>v3-rev20-1.22.0</version>
+            <version>v3-rev51-1.22.0</version>
         </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>
@@ -99,7 +99,7 @@
         <dependency>
             <groupId>com.jcabi</groupId>
             <artifactId>jcabi-matchers</artifactId>
-            <version>1.3</version>
+            <version>1.4</version>
             <scope>test</scope>
         </dependency>
         <dependency>
diff --git a/pom.xml b/pom.xml
index 20c9254cb0f..390a2f060e4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -157,13 +157,13 @@
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
-            <version>2.5.5</version>
+            <version>2.6.8</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>com.jcabi</groupId>
             <artifactId>jcabi-matchers</artifactId>
-            <version>1.3</version>
+            <version>1.4</version>
         </dependency>
         <dependency>
             <groupId>com.google.appengine</groupId>
diff --git a/speech/grpc/pom.xml b/speech/grpc/pom.xml
index ca857bb323b..055e20021d1 100644
--- a/speech/grpc/pom.xml
+++ b/speech/grpc/pom.xml
@@ -148,7 +148,7 @@ limitations under the License.
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.truth</groupId>
@@ -193,7 +193,7 @@ limitations under the License.
 -      -->
       <groupId>io.netty</groupId>
       <artifactId>netty-tcnative-boringssl-static</artifactId>
-      <version>1.1.33.Fork25</version>
+      <version>1.1.33.Fork26</version>
       <classifier>${tcnative.classifier}</classifier>
     </dependency>
     <dependency>
diff --git a/storage/json-api/pom.xml b/storage/json-api/pom.xml
index 4ad01f25225..82f9d2d3ffe 100644
--- a/storage/json-api/pom.xml
+++ b/storage/json-api/pom.xml
@@ -39,7 +39,7 @@
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-storage</artifactId>
-      <version>v1-rev92-1.22.0</version>
+      <version>v1-rev94-1.22.0</version>
       <exclusions>
         <exclusion> <!-- exclude an old version of Guava -->
           <groupId>com.google.guava</groupId>
@@ -50,7 +50,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.oauth-client</groupId>
diff --git a/storage/storage-transfer/pom.xml b/storage/storage-transfer/pom.xml
index 001683c1033..499766648a3 100644
--- a/storage/storage-transfer/pom.xml
+++ b/storage/storage-transfer/pom.xml
@@ -52,7 +52,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
 
     <!-- Test Dependencies -->
diff --git a/storage/xml-api/cmdline-sample/pom.xml b/storage/xml-api/cmdline-sample/pom.xml
index d8e7196d140..aee7d7bca64 100644
--- a/storage/xml-api/cmdline-sample/pom.xml
+++ b/storage/xml-api/cmdline-sample/pom.xml
@@ -66,7 +66,7 @@
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-storage</artifactId>
-      <version>v1-rev92-1.22.0</version>
+      <version>v1-rev94-1.22.0</version>
       <exclusions>
         <exclusion> <!-- exclude an old version of Guava -->
           <groupId>com.google.guava</groupId>
@@ -82,7 +82,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <!-- Test Dependencies -->
     <dependency>
diff --git a/vision/face-detection/pom.xml b/vision/face-detection/pom.xml
index 501230e83ea..33444daf7a6 100644
--- a/vision/face-detection/pom.xml
+++ b/vision/face-detection/pom.xml
@@ -39,7 +39,7 @@
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-vision</artifactId>
-      <version>v1-rev30-1.22.0</version>
+      <version>v1-rev36-1.22.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.api-client</groupId>
@@ -56,7 +56,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
 
     <!-- Test Dependencies -->
diff --git a/vision/label/pom.xml b/vision/label/pom.xml
index 3b643671cc1..3397634a9b9 100644
--- a/vision/label/pom.xml
+++ b/vision/label/pom.xml
@@ -38,7 +38,7 @@
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-vision</artifactId>
-      <version>v1-rev30-1.22.0</version>
+      <version>v1-rev36-1.22.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.api-client</groupId>
@@ -54,7 +54,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
 
     <!-- Test Dependencies -->
diff --git a/vision/landmark-detection/pom.xml b/vision/landmark-detection/pom.xml
index 5b0671e5f81..5282d68d30b 100644
--- a/vision/landmark-detection/pom.xml
+++ b/vision/landmark-detection/pom.xml
@@ -38,7 +38,7 @@
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-vision</artifactId>
-      <version>v1-rev30-1.22.0</version>
+      <version>v1-rev36-1.22.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.api-client</groupId>
@@ -54,7 +54,7 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
 
     <!-- Test Dependencies -->
diff --git a/vision/text/pom.xml b/vision/text/pom.xml
index 48e2b63948c..53eac0bbe86 100644
--- a/vision/text/pom.xml
+++ b/vision/text/pom.xml
@@ -38,7 +38,7 @@
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-vision</artifactId>
-      <version>v1-rev30-1.22.0</version>
+      <version>v1-rev36-1.22.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.api-client</groupId>
@@ -54,12 +54,12 @@
     <dependency>
       <groupId>com.google.guava</groupId>
       <artifactId>guava</artifactId>
-      <version>20.0</version>
+      <version>21.0</version>
     </dependency>
     <dependency>
       <groupId>org.apache.opennlp</groupId>
       <artifactId>opennlp-tools</artifactId>
-      <version>1.7.0</version>
+      <version>1.7.1</version>
     </dependency>
     <dependency>
       <groupId>redis.clients</groupId>