diff --git a/modules/openapi-generator/src/main/resources/android/build.mustache b/modules/openapi-generator/src/main/resources/android/build.mustache
index 52f3c886112..0252d8b8750 100644
--- a/modules/openapi-generator/src/main/resources/android/build.mustache
+++ b/modules/openapi-generator/src/main/resources/android/build.mustache
@@ -75,8 +75,8 @@ android {
 
 
 ext {
-    swagger_annotations_version = "1.5.0"
-    gson_version = "2.3.1"
+    swagger_annotations_version = "1.6.6"
+    gson_version = "2.8.9"
     httpclient_version = "4.5.13"
     httpcore_version = "4.4.4"
     junit_version = "4.13"
diff --git a/modules/openapi-generator/src/main/resources/android/pom.mustache b/modules/openapi-generator/src/main/resources/android/pom.mustache
index 2c6f72e4cf6..d8f3e6b24b1 100644
--- a/modules/openapi-generator/src/main/resources/android/pom.mustache
+++ b/modules/openapi-generator/src/main/resources/android/pom.mustache
@@ -171,9 +171,8 @@
     </repositories>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <swagger-core-version>1.5.18</swagger-core-version>
-        <gson-version>2.3.1</gson-version>
-        <junit-version>4.13.2</junit-version>
+        <swagger-core-version>1.6.6</swagger-core-version>
+        <gson-version>2.8.9</gson-version>
         <maven-plugin-version>1.0.0</maven-plugin-version>
         <junit-version>4.13.2</junit-version>
         <httpclient-version>4.5.13</httpclient-version>
diff --git a/samples/client/petstore/android/httpclient/build.gradle b/samples/client/petstore/android/httpclient/build.gradle
index 4d2c18d8227..d0dbd5aaf7a 100644
--- a/samples/client/petstore/android/httpclient/build.gradle
+++ b/samples/client/petstore/android/httpclient/build.gradle
@@ -49,8 +49,8 @@ android {
 
 
 ext {
-    swagger_annotations_version = "1.5.0"
-    gson_version = "2.3.1"
+    swagger_annotations_version = "1.6.6"
+    gson_version = "2.8.9"
     httpclient_version = "4.5.13"
     httpcore_version = "4.4.4"
     junit_version = "4.13"
diff --git a/samples/client/petstore/android/httpclient/pom.xml b/samples/client/petstore/android/httpclient/pom.xml
index 179c040e510..85f84bcccba 100644
--- a/samples/client/petstore/android/httpclient/pom.xml
+++ b/samples/client/petstore/android/httpclient/pom.xml
@@ -171,9 +171,8 @@
     </repositories>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <swagger-core-version>1.5.18</swagger-core-version>
-        <gson-version>2.3.1</gson-version>
-        <junit-version>4.13.2</junit-version>
+        <swagger-core-version>1.6.6</swagger-core-version>
+        <gson-version>2.8.9</gson-version>
         <maven-plugin-version>1.0.0</maven-plugin-version>
         <junit-version>4.13.2</junit-version>
         <httpclient-version>4.5.13</httpclient-version>