diff --git a/README.md b/README.md
index 0804b05..2c57dee 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ spec:
     storage:
       type: persistent | ephemeral  # enum
       claimName: String # only valid and required for persistent
-    externalConfiguration:
+    runtime:
       env: EnvFromSource array # https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.23/#envfromsource-v1-core
       volumes: Volume array # https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.23/#volume-v1-core
     quarkus:
diff --git a/src/main/java/io/debezium/operator/dependent/DeploymentDependent.java b/src/main/java/io/debezium/operator/dependent/DeploymentDependent.java
index a9665bc..26b2ea2 100644
--- a/src/main/java/io/debezium/operator/dependent/DeploymentDependent.java
+++ b/src/main/java/io/debezium/operator/dependent/DeploymentDependent.java
@@ -148,14 +148,14 @@ protected Deployment desired(DebeziumServer primary, Context<DebeziumServer> con
     }
 
     private void addExternalEnvVariables(DebeziumServer primary, Deployment deployment) {
-        var config = primary.getSpec().getExternalConfiguration();
+        var config = primary.getSpec().getRuntime();
         var containers = deployment.getSpec().getTemplate().getSpec().getContainers();
 
         containers.forEach(container -> container.getEnvFrom().addAll(config.getEnv()));
     }
 
     private void addExternalVolumes(DebeziumServer primary, Deployment deployment) {
-        var config = primary.getSpec().getExternalConfiguration();
+        var config = primary.getSpec().getRuntime();
         var volumes = deployment.getSpec().getTemplate().getSpec().getVolumes();
 
         var containers = deployment.getSpec().getTemplate().getSpec().getContainers();
diff --git a/src/main/java/io/debezium/operator/model/DebeziumServerSpec.java b/src/main/java/io/debezium/operator/model/DebeziumServerSpec.java
index 554bcc5..7d3679f 100644
--- a/src/main/java/io/debezium/operator/model/DebeziumServerSpec.java
+++ b/src/main/java/io/debezium/operator/model/DebeziumServerSpec.java
@@ -18,7 +18,7 @@ public class DebeziumServerSpec implements ConfigMappable {
     private Source source;
     private Format format;
     private Quarkus quarkus;
-    private ExternalConfiguration externalConfiguration;
+    private Runtime runtime;
     private List<Transformation> transforms;
     private List<Predicate> predicates;
 
@@ -28,7 +28,7 @@ public DebeziumServerSpec() {
         this.source = new Source();
         this.format = new Format();
         this.quarkus = new Quarkus();
-        this.externalConfiguration = new ExternalConfiguration();
+        this.runtime = new Runtime();
         this.transforms = List.of();
         this.predicates = List.of();
     }
@@ -81,12 +81,12 @@ public void setQuarkus(Quarkus quarkus) {
         this.quarkus = quarkus;
     }
 
-    public ExternalConfiguration getExternalConfiguration() {
-        return externalConfiguration;
+    public Runtime getRuntime() {
+        return runtime;
     }
 
-    public void setExternalConfiguration(ExternalConfiguration externalConfiguration) {
-        this.externalConfiguration = externalConfiguration;
+    public void setRuntime(Runtime runtime) {
+        this.runtime = runtime;
     }
 
     public Format getFormat() {
diff --git a/src/main/java/io/debezium/operator/model/ExternalConfiguration.java b/src/main/java/io/debezium/operator/model/Runtime.java
similarity index 91%
rename from src/main/java/io/debezium/operator/model/ExternalConfiguration.java
rename to src/main/java/io/debezium/operator/model/Runtime.java
index 1f70e08..9240a96 100644
--- a/src/main/java/io/debezium/operator/model/ExternalConfiguration.java
+++ b/src/main/java/io/debezium/operator/model/Runtime.java
@@ -11,13 +11,13 @@
 import io.fabric8.kubernetes.api.model.EnvFromSource;
 import io.fabric8.kubernetes.api.model.Volume;
 
-public class ExternalConfiguration {
+public class Runtime {
 
     private List<EnvFromSource> env;
 
     private List<Volume> volumes;
 
-    public ExternalConfiguration() {
+    public Runtime() {
         this.env = new ArrayList<>();
         this.volumes = new ArrayList<>();
     }