diff --git a/gradle.properties b/gradle.properties
index c18a926..382433f 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -6,13 +6,13 @@ multithreadedtcVersion=1.01
 pivotalGemFireVersion=9.1.1
 # The Spring Boot & Spring Session version are the only required version properties.
 # The other Spring version properties are for overriding/testing purposes.
-springVersion=5.0.8.RELEASE
-springBootVersion=2.0.4.RELEASE
-springDataGemFireVersion=2.0.9.RELEASE
-springDataGeodeVersion=2.0.9.RELEASE
+springVersion=5.1.0.RC1
+springBootVersion=2.1.0.M1
+springDataGemFireVersion=2.1.0.RC1
+springDataGeodeVersion=2.1.0.RC1
 springDataGeodeTestVersion=0.0.1.BUILD-SNAPSHOT
-springDataReleaseTrainVersion=Kay-SR9
-springSessionVersion=2.0.6.BUILD-SNAPSHOT
-springSessionBomVersion=Apple-SR4
+springDataReleaseTrainVersion=Lovelace-RC1
+springSessionVersion=2.1.0.BUILD-SNAPSHOT
+springSessionBomVersion=Beam-M1
 springShellVersion=1.2.0.RELEASE
 version=2.1.0.BUILD-SNAPSHOT