diff --git a/.github/workflows/maven-build.yml b/.github/workflows/maven-build.yml
index 3ecfb8df30..9520fede63 100644
--- a/.github/workflows/maven-build.yml
+++ b/.github/workflows/maven-build.yml
@@ -108,6 +108,7 @@ jobs:
     name: Deploy
     runs-on: ubuntu-latest
     needs: [build, test-8, test]
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-java@v2
diff --git a/pom.xml b/pom.xml
index 060c965152..3638ab072a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.kohsuke</groupId>
   <artifactId>cortexapps-github-api</artifactId>
-  <version>1.329</version>
+  <version>1.331</version>
   <name>GitHub API for Java</name>
   <url>https://github-api.kohsuke.org/</url>
   <description>GitHub API for Java</description>
@@ -468,7 +468,7 @@
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>
-      <version>2.14.0</version>
+      <version>2.21.8</version>
     </dependency>
     <dependency>
       <groupId>commons-io</groupId>
diff --git a/src/main/java/org/kohsuke/github/GitHubClient.java b/src/main/java/org/kohsuke/github/GitHubClient.java
index 73491d148d..62f17d8139 100644
--- a/src/main/java/org/kohsuke/github/GitHubClient.java
+++ b/src/main/java/org/kohsuke/github/GitHubClient.java
@@ -78,7 +78,7 @@ class GitHubClient {
         MAPPER.setVisibility(new VisibilityChecker.Std(NONE, NONE, NONE, NONE, ANY));
         MAPPER.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
         MAPPER.configure(MapperFeature.ACCEPT_CASE_INSENSITIVE_ENUMS, true);
-        MAPPER.setPropertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE);
+        MAPPER.setPropertyNamingStrategy(PropertyNamingStrategies.SNAKE_CASE);
     }
 
     /**