diff --git a/functions-framework-api/pom.xml b/functions-framework-api/pom.xml
index f6a0026c..b7f60a7c 100644
--- a/functions-framework-api/pom.xml
+++ b/functions-framework-api/pom.xml
@@ -73,7 +73,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
-        <version>3.3.1</version>
+        <version>3.2.1</version>
         <executions>
           <execution>
             <id>attach-sources</id>
@@ -151,7 +151,7 @@
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-source-plugin</artifactId>
-            <version>3.6.0</version>
+            <version>3.2.1</version>
             <executions>
               <execution>
                 <id>attach-sources</id>