diff --git a/build.gradle b/build.gradle
index 4437e36b..aa119dc8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -35,7 +35,7 @@ dependencies {
     implementation 'org.apache.logging.log4j:log4j-slf4j2-impl:2.23.0'
 
     // for input generation
-    implementation 'com.github.curious-odd-man:rgxgen:1.4'
+    implementation 'com.github.curious-odd-man:rgxgen:2.0'
 
     // applet installation
     implementation 'org.apache.ant:ant:1.10.14'
diff --git a/src/main/java/jcprofiler/profiling/AbstractProfiler.java b/src/main/java/jcprofiler/profiling/AbstractProfiler.java
index c93d01ed..a7b854b4 100644
--- a/src/main/java/jcprofiler/profiling/AbstractProfiler.java
+++ b/src/main/java/jcprofiler/profiling/AbstractProfiler.java
@@ -219,7 +219,7 @@ protected void generateInputs(int size) {
         // regex
         if (args.dataRegex != null) {
             log.info("Generating inputs from regular expression {}.", args.dataRegex);
-            final RgxGen rgxGen = new RgxGen(args.dataRegex);
+            final RgxGen rgxGen = RgxGen.parse(args.dataRegex);
 
             for (int i = 0; i < size * 100; i++) {
                 final String input = rgxGen.generate(rdn);