3 files changed, 3 insertions, 3 deletions
diff --git a/src/org/stsci/Conda.groovy b/src/org/stsci/Conda.groovy
index da488bc..d406cc9 100644
--- a/src/org/stsci/Conda.groovy
+++ b/src/org/stsci/Conda.groovy
@@ -1,6 +1,6 @@
 package org.stsci
 
-class Conda {
+class Conda implements Serializable {
     public String prefix
     public boolean prefix_exists
     public Map<String, String> shell_environment
diff --git a/src/org/stsci/CondaInstaller.groovy b/src/org/stsci/CondaInstaller.groovy
index e1cef45..50f7f50 100644
--- a/src/org/stsci/CondaInstaller.groovy
+++ b/src/org/stsci/CondaInstaller.groovy
@@ -1,7 +1,7 @@
 package org.stsci
 import org.stsci.OSInfo
 
-class CondaInstaller {
+class CondaInstaller implements Serializable {
     OSInfo os
     String prefix
     String dist_version
diff --git a/src/org/stsci/OSInfo.groovy b/src/org/stsci/OSInfo.groovy
index a29a1db..5d6c93b 100644
--- a/src/org/stsci/OSInfo.groovy
+++ b/src/org/stsci/OSInfo.groovy
@@ -1,6 +1,6 @@
 package org.stsci
 
-class OSInfo {
+class OSInfo implements Serializable {
     public String name
     public String version
     public String arch