diff --git a/README.md b/README.md
index daef7f4..87b45bc 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ To deserialize a CodeTF file using these objects, simply deserialize with Jackso
 
 ## Gradle
 ```kotlin
-implementation("io.codemodder:codetf-java:3.1.1")
+implementation("io.codemodder:codetf-java:3.2.0")
 ```
 
 ## Maven
@@ -25,7 +25,7 @@ implementation("io.codemodder:codetf-java:3.1.1")
 <dependency>
   <groupId>io.codemodder</groupId>
   <artifactId>codetf-java</artifactId>
-  <version>3.1.1</version>
+  <version>3.2.0</version>
 </dependency>
 ```
 
diff --git a/pom.xml b/pom.xml
index 85600a7..af7c42f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>io.codemodder</groupId>
     <artifactId>codetf-java</artifactId>
-    <version>3.1.1</version>
+    <version>3.2.0</version>
 
 
     <name>codetf-java</name>
diff --git a/src/main/java/io/codemodder/codetf/CodeTFResult.java b/src/main/java/io/codemodder/codetf/CodeTFResult.java
index 6ffedf4..08e7efb 100644
--- a/src/main/java/io/codemodder/codetf/CodeTFResult.java
+++ b/src/main/java/io/codemodder/codetf/CodeTFResult.java
@@ -10,7 +10,7 @@ public final class CodeTFResult {
   private final String codemod;
   private final String summary;
   private final String description;
-  private final Optional<DetectionTool> detectionTool;
+  private final DetectionTool detectionTool;
   private final Set<String> failedFiles;
   private final List<CodeTFReference> references;
   private final Map<String, String> properties;
@@ -29,7 +29,7 @@ public CodeTFResult(
     this.codemod = CodeTFValidator.requireNonBlank(codemod);
     this.summary = CodeTFValidator.requireNonBlank(summary);
     this.description = CodeTFValidator.requireNonBlank(description);
-    this.detectionTool = Optional.ofNullable(detectionTool);
+    this.detectionTool = detectionTool;
     this.failedFiles = CodeTFValidator.toImmutableCopyOrEmptyOnNull(failedFiles);
     this.references = CodeTFValidator.toImmutableCopyOrEmptyOnNull(references);
     this.properties = CodeTFValidator.toImmutableCopyOrEmptyOnNull(properties);
@@ -48,7 +48,7 @@ public String getDescription() {
     return description;
   }
 
-  public Optional<DetectionTool> getDetectionTool() {
+  public DetectionTool getDetectionTool() {
     return detectionTool;
   }
 
@@ -113,7 +113,7 @@ public CodeTFResult build() {
           originalResult.getCodemod(),
           updatedSummary != null ? updatedSummary : originalResult.getSummary(),
           updatedDescription != null ? updatedDescription : originalResult.getDescription(),
-          originalResult.detectionTool.orElse(null),
+          originalResult.detectionTool,
           originalResult.getFailedFiles(),
           updatedReferences != null ? updatedReferences : originalResult.getReferences(),
           originalResult.getProperties(),
diff --git a/src/main/java/io/codemodder/codetf/DetectorRule.java b/src/main/java/io/codemodder/codetf/DetectorRule.java
index d318df1..5d4e874 100644
--- a/src/main/java/io/codemodder/codetf/DetectorRule.java
+++ b/src/main/java/io/codemodder/codetf/DetectorRule.java
@@ -3,13 +3,12 @@
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import java.util.Objects;
-import java.util.Optional;
 
 /** Describes the "rule" section of a detection tool. */
 public final class DetectorRule {
   private final String id;
   private final String name;
-  private final Optional<String> url;
+  private final String url;
 
   @JsonCreator
   public DetectorRule(
@@ -18,7 +17,7 @@ public DetectorRule(
       @JsonProperty(value = "url", index = 3) String url) {
     this.id = Objects.requireNonNull(id);
     this.name = Objects.requireNonNull(name);
-    this.url = Optional.ofNullable(url);
+    this.url = url;
   }
 
   public String getId() {
@@ -29,7 +28,7 @@ public String getName() {
     return name;
   }
 
-  public Optional<String> getUrl() {
+  public String getUrl() {
     return url;
   }
 }
diff --git a/src/test/java/io/codemodder/codetf/CodeTFResultTest.java b/src/test/java/io/codemodder/codetf/CodeTFResultTest.java
index 8a6ca58..fd7cb9f 100644
--- a/src/test/java/io/codemodder/codetf/CodeTFResultTest.java
+++ b/src/test/java/io/codemodder/codetf/CodeTFResultTest.java
@@ -95,7 +95,7 @@ void it_creates_detection_tool_with_empty_url() {
     assertEquals("rule", tool.getRule().getId());
     assertEquals("Here's a rule", tool.getRule().getName());
     assertEquals(2, tool.getFindings().size());
-    assertTrue(tool.getRule().getUrl().isEmpty());
+    assertNull(tool.getRule().getUrl());
   }
 
   @Test
@@ -112,8 +112,8 @@ void it_creates_detection_tool_with_url() {
     assertEquals("rule", tool.getRule().getId());
     assertEquals("Here's a rule", tool.getRule().getName());
     assertEquals(2, tool.getFindings().size());
-    assertTrue(tool.getRule().getUrl().isPresent());
-    assertEquals("https://example.com", tool.getRule().getUrl().get());
+    assertNotNull(tool.getRule().getUrl());
+    assertEquals("https://example.com", tool.getRule().getUrl());
   }
 
   @Test