diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a2bbb56d..ed48c3460 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+### [2.12.1](https://github.com/googleapis/gax-java/compare/v2.12.0...v2.12.1) (2022-02-09)
+
+
+### Bug Fixes
+
+* revert "feat: add api key support ([#1436](https://github.com/googleapis/gax-java/issues/1436))" ([#1617](https://github.com/googleapis/gax-java/issues/1617)) ([47f98b8](https://github.com/googleapis/gax-java/commit/47f98b872c6896ad2af37e30db440321c2adb492))
+
 ## [2.12.0](https://github.com/googleapis/gax-java/compare/v2.11.0...v2.12.0) (2022-01-28)
 
 
diff --git a/build.gradle b/build.gradle
index edf17f9ad..d47069d63 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,7 +13,7 @@ plugins {
 }
 
 // TODO: Populate this from dependencies.properties version property (for proper Gradle-Bazel sync)
-project.version = "2.12.1-SNAPSHOT" // {x-version-update:gax:current}
+project.version = "2.12.1" // {x-version-update:gax:current}
 
 allprojects {
   group = 'com.google.api'
diff --git a/dependencies.properties b/dependencies.properties
index 42a6280cc..fd6e933e8 100644
--- a/dependencies.properties
+++ b/dependencies.properties
@@ -8,16 +8,16 @@
 
 # Versions of oneself
 # {x-version-update-start:gax:current}
-version.gax=2.12.1-SNAPSHOT
+version.gax=2.12.1
 # {x-version-update-end}
 # {x-version-update-start:gax:current}
-version.gax_grpc=2.12.1-SNAPSHOT
+version.gax_grpc=2.12.1
 # {x-version-update-end}
 # {x-version-update-start:gax:current}
-version.gax_bom=2.12.1-SNAPSHOT
+version.gax_bom=2.12.1
 # {x-version-update-end}
 # {x-version-update-start:gax-httpjson:current}
-version.gax_httpjson=0.97.1-SNAPSHOT
+version.gax_httpjson=0.97.1
 # {x-version-update-end}
 
 # Versions for dependencies which actual artifacts differ between Bazel and Gradle.
diff --git a/gax-bom/build.gradle b/gax-bom/build.gradle
index 7282209d4..983ff7699 100644
--- a/gax-bom/build.gradle
+++ b/gax-bom/build.gradle
@@ -5,7 +5,7 @@ plugins {
 
 archivesBaseName = 'gax-bom'
 
-project.version = "2.12.1-SNAPSHOT" // {x-version-update:gax-bom:current}
+project.version = "2.12.1" // {x-version-update:gax-bom:current}
 
 def mavenJavaDir = "$buildDir/publications/mavenJava"
 def mavenJavaBomOutputFile = file(mavenJavaDir + '/pom-default.xml')
diff --git a/gax-bom/pom.xml b/gax-bom/pom.xml
index 1d83d3e43..d4cdaaec2 100644
--- a/gax-bom/pom.xml
+++ b/gax-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api</groupId>
   <artifactId>gax-bom</artifactId>
-  <version>2.12.1-SNAPSHOT</version><!-- {x-version-update:gax-bom:current} -->
+  <version>2.12.1</version><!-- {x-version-update:gax-bom:current} -->
   <packaging>pom</packaging>
   <name>GAX (Google Api eXtensions) for Java</name>
   <description>Google Api eXtensions for Java</description>
@@ -33,34 +33,34 @@
       <dependency>
         <groupId>com.google.api</groupId>
         <artifactId>gax</artifactId>
-        <version>2.12.1-SNAPSHOT</version><!-- {x-version-update:gax:current} -->
+        <version>2.12.1</version><!-- {x-version-update:gax:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api</groupId>
         <artifactId>gax</artifactId>
-        <version>2.12.1-SNAPSHOT</version><!-- {x-version-update:gax:current} -->
+        <version>2.12.1</version><!-- {x-version-update:gax:current} -->
         <classifier>testlib</classifier>
       </dependency>
       <dependency>
         <groupId>com.google.api</groupId>
         <artifactId>gax-grpc</artifactId>
-        <version>2.12.1-SNAPSHOT</version><!-- {x-version-update:gax-grpc:current} -->
+        <version>2.12.1</version><!-- {x-version-update:gax-grpc:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api</groupId>
         <artifactId>gax-grpc</artifactId>
-        <version>2.12.1-SNAPSHOT</version><!-- {x-version-update:gax-grpc:current} -->
+        <version>2.12.1</version><!-- {x-version-update:gax-grpc:current} -->
         <classifier>testlib</classifier>
       </dependency>
       <dependency>
         <groupId>com.google.api</groupId>
         <artifactId>gax-httpjson</artifactId>
-        <version>0.97.1-SNAPSHOT</version><!-- {x-version-update:gax-httpjson:current} -->
+        <version>0.97.1</version><!-- {x-version-update:gax-httpjson:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api</groupId>
         <artifactId>gax-httpjson</artifactId>
-        <version>0.97.1-SNAPSHOT</version><!-- {x-version-update:gax-httpjson:current} -->
+        <version>0.97.1</version><!-- {x-version-update:gax-httpjson:current} -->
         <classifier>testlib</classifier>
       </dependency>
     </dependencies>
diff --git a/gax-grpc/build.gradle b/gax-grpc/build.gradle
index 622ea478c..29f487785 100644
--- a/gax-grpc/build.gradle
+++ b/gax-grpc/build.gradle
@@ -1,7 +1,7 @@
 archivesBaseName = 'gax-grpc'
 
 // TODO: Populate this from dependencies.properties version property (for proper Gradle-Bazel sync)
-project.version = "2.12.1-SNAPSHOT" // {x-version-update:gax-grpc:current}
+project.version = "2.12.1" // {x-version-update:gax-grpc:current}
 
 dependencies {
   api(project(':gax'),
diff --git a/gax-httpjson/build.gradle b/gax-httpjson/build.gradle
index 33493b34f..864e40dbe 100644
--- a/gax-httpjson/build.gradle
+++ b/gax-httpjson/build.gradle
@@ -1,7 +1,7 @@
 archivesBaseName = 'gax-httpjson'
 
 // TODO: Populate this from dependencies.properties version property (for proper Gradle-Bazel sync)
-project.version = "0.97.1-SNAPSHOT" // {x-version-update:gax-httpjson:current}
+project.version = "0.97.1" // {x-version-update:gax-httpjson:current}
 
 dependencies {
   api(project(':gax'),
diff --git a/gax/build.gradle b/gax/build.gradle
index 51cbbddd4..bb1c1b619 100644
--- a/gax/build.gradle
+++ b/gax/build.gradle
@@ -1,7 +1,7 @@
 archivesBaseName = "gax"
 
 // TODO: Populate this from dependencies.properties version property (for proper Gradle-Bazel sync)
-project.version = "2.12.1-SNAPSHOT" // {x-version-update:gax:current}
+project.version = "2.12.1" // {x-version-update:gax:current}
 
 dependencies {
   api(libraries['maven.com_google_api_api_common'],
diff --git a/versions.txt b/versions.txt
index 742d6ce14..21ce428cb 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,7 +1,7 @@
 # Format:
 # module:released-version:current-version
 
-gax:2.12.0:2.12.1-SNAPSHOT
-gax-bom:2.12.0:2.12.1-SNAPSHOT
-gax-grpc:2.12.0:2.12.1-SNAPSHOT
-gax-httpjson:0.97.0:0.97.1-SNAPSHOT
+gax:2.12.1:2.12.1
+gax-bom:2.12.1:2.12.1
+gax-grpc:2.12.1:2.12.1
+gax-httpjson:0.97.1:0.97.1