diff --git a/symja_android_library/pom.xml b/symja_android_library/pom.xml
index 7b45caae40..d367cd49ca 100644
--- a/symja_android_library/pom.xml
+++ b/symja_android_library/pom.xml
@@ -239,27 +239,27 @@
 			<dependency>
 				<groupId>org.hipparchus</groupId>
 				<artifactId>hipparchus-clustering</artifactId>
-				<version>3.0</version>
+				<version>3.1-SNAPSHOT</version>
 			</dependency>
 			<dependency>
 				<groupId>org.hipparchus</groupId>
 				<artifactId>hipparchus-fft</artifactId>
-				<version>3.0</version>
+				<version>3.1-SNAPSHOT</version>
 			</dependency>
 			<dependency>
 				<groupId>org.hipparchus</groupId>
 				<artifactId>hipparchus-fitting</artifactId>
-				<version>3.0</version>
+				<version>3.1-SNAPSHOT</version>
 			</dependency>
 			<dependency>
 				<groupId>org.hipparchus</groupId>
 				<artifactId>hipparchus-ode</artifactId>
-				<version>3.0</version>
+				<version>3.1-SNAPSHOT</version>
 			</dependency>
 			<dependency>
 				<groupId>org.hipparchus</groupId>
 				<artifactId>hipparchus-optim</artifactId>
-				<version>3.0</version>
+				<version>3.1-SNAPSHOT</version>
 			</dependency>
 			<dependency>
 				<groupId>org.antlr</groupId>