diff --git a/build-logic/jvm/src/main/kotlin/build-logic.errorprone.gradle.kts b/build-logic/jvm/src/main/kotlin/build-logic.errorprone.gradle.kts
index dd9f5002..d087dc34 100644
--- a/build-logic/jvm/src/main/kotlin/build-logic.errorprone.gradle.kts
+++ b/build-logic/jvm/src/main/kotlin/build-logic.errorprone.gradle.kts
@@ -8,7 +8,7 @@ if (!project.hasProperty("skipErrorprone")) {
     apply(plugin = "net.ltgt.errorprone")
 
     dependencies {
-        "errorprone"("com.google.errorprone:error_prone_core:2.22.0")
+        "errorprone"("com.google.errorprone:error_prone_core:2.23.0")
         "annotationProcessor"("com.google.guava:guava-beta-checker:1.0")
     }
 
diff --git a/sigstore-java/src/main/java/dev/sigstore/json/canonicalizer/JsonCanonicalizer.java b/sigstore-java/src/main/java/dev/sigstore/json/canonicalizer/JsonCanonicalizer.java
index fc11541f..1a4cf66a 100644
--- a/sigstore-java/src/main/java/dev/sigstore/json/canonicalizer/JsonCanonicalizer.java
+++ b/sigstore-java/src/main/java/dev/sigstore/json/canonicalizer/JsonCanonicalizer.java
@@ -17,6 +17,7 @@
 package dev.sigstore.json.canonicalizer;
 
 import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import java.util.Map;
 import java.util.TreeMap;
 import java.util.Vector;
@@ -37,7 +38,7 @@ public JsonCanonicalizer(String jsonData) throws IOException {
   }
 
   public JsonCanonicalizer(byte[] jsonData) throws IOException {
-    this(new String(jsonData, "utf-8"));
+    this(new String(jsonData, StandardCharsets.UTF_8));
   }
 
   private void escape(char c) {
@@ -137,7 +138,7 @@ public String getEncodedString() {
   }
 
   public byte[] getEncodedUTF8() throws IOException {
-    return getEncodedString().getBytes("utf-8");
+    return getEncodedString().getBytes(StandardCharsets.UTF_8);
   }
 }