diff --git a/build.gradle b/build.gradle
index da85d657..7c999150 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,7 +19,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-validation'
     implementation 'org.springdoc:springdoc-openapi-starter-webflux-ui:2.0.4'
     implementation 'com.bpodgursky:jbool_expressions:1.24'
-    implementation 'com.github.ProvideQ.jplex:input:ad6a034668'
+    implementation 'com.github.ProvideQ.jplex:input:703b4d0086'
     implementation files('lib/de.ovgu.featureide.lib.fm-v3.9.1.jar', 'lib/uvl-parser.jar')
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testImplementation 'org.mockito:mockito-core:5.+'
diff --git a/src/main/java/edu/kit/provideq/toolbox/qubo/solvers/KipuQuboSolver.java b/src/main/java/edu/kit/provideq/toolbox/qubo/solvers/KipuQuboSolver.java
index d0b94b81..6bb6a5f8 100644
--- a/src/main/java/edu/kit/provideq/toolbox/qubo/solvers/KipuQuboSolver.java
+++ b/src/main/java/edu/kit/provideq/toolbox/qubo/solvers/KipuQuboSolver.java
@@ -15,8 +15,6 @@
 import edu.kit.provideq.toolbox.meta.setting.SolverSetting;
 import edu.kit.provideq.toolbox.meta.setting.basic.TextSetting;
 import edu.kit.provideq.toolbox.qubo.QuboConfiguration;
-import java.io.BufferedReader;
-import java.io.StringReader;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -62,12 +60,8 @@ public Mono<Solution<String>> solve(
       return Mono.just(Solution.failed(this, "No PlanQK token provided."));
     }
 
-    // Convert problem data string to buffered reader
-    var problemDataReader = new BufferedReader(new StringReader(input));
-    // Parse lp data
-    LpFileReader lpReader = new LpFileReader(problemDataReader);
-
     KipuQuboProblem kipuQubo;
+    LpFileReader lpReader = LpFileReader.fromInput(input);
     try {
       kipuQubo = parseKipuQubo(lpReader);
     } catch (ConversionException e) {
diff --git a/src/main/java/edu/kit/provideq/toolbox/qubo/solvers/QuantagoniaQuboSolver.java b/src/main/java/edu/kit/provideq/toolbox/qubo/solvers/QuantagoniaQuboSolver.java
index 84f078a2..86bb044d 100644
--- a/src/main/java/edu/kit/provideq/toolbox/qubo/solvers/QuantagoniaQuboSolver.java
+++ b/src/main/java/edu/kit/provideq/toolbox/qubo/solvers/QuantagoniaQuboSolver.java
@@ -14,8 +14,6 @@
 import edu.kit.provideq.toolbox.meta.setting.SolverSetting;
 import edu.kit.provideq.toolbox.meta.setting.basic.TextSetting;
 import edu.kit.provideq.toolbox.qubo.QuboConfiguration;
-import java.io.BufferedReader;
-import java.io.StringReader;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
@@ -61,12 +59,8 @@ public Mono<Solution<String>> solve(
       return Mono.just(Solution.failed(this, "No PlanQK token provided."));
     }
 
-    // Convert problem data string to buffered reader
-    var problemDataReader = new BufferedReader(new StringReader(input));
-    // Parse lp data
-    LpFileReader lpReader = new LpFileReader(problemDataReader);
-
     QuantagoniaQuboProblem quantagoniaQubo;
+    LpFileReader lpReader = LpFileReader.fromInput(input);
     try {
       quantagoniaQubo = parseQuantagoniaQubo(lpReader);
     } catch (ConversionException e) {