diff --git a/cmake/Python_version.in b/cmake/Python_version.in
index 2530fd9c0d9e..ef2754d2d860 100644
--- a/cmake/Python_version.in
+++ b/cmake/Python_version.in
@@ -1 +1 @@
-@xgboost_VERSION_MAJOR@.@xgboost_VERSION_MINOR@.@xgboost_VERSION_PATCH@
\ No newline at end of file
+@xgboost_VERSION_MAJOR@.@xgboost_VERSION_MINOR@.@xgboost_VERSION_PATCH@rc1
\ No newline at end of file
diff --git a/jvm-packages/pom.xml b/jvm-packages/pom.xml
index ae9c6d8ba904..b495953c6e5f 100644
--- a/jvm-packages/pom.xml
+++ b/jvm-packages/pom.xml
@@ -6,7 +6,7 @@
ml.dmlc
xgboost-jvm_2.12
- 1.5.0
+ 1.5.0-RC1
pom
XGBoost JVM Package
JVM Package for XGBoost
diff --git a/jvm-packages/xgboost4j-example/pom.xml b/jvm-packages/xgboost4j-example/pom.xml
index 836dc9da16c8..a8e67be23e77 100644
--- a/jvm-packages/xgboost4j-example/pom.xml
+++ b/jvm-packages/xgboost4j-example/pom.xml
@@ -6,10 +6,10 @@
ml.dmlc
xgboost-jvm_2.12
- 1.5.0
+ 1.5.0-RC1
xgboost4j-example_2.12
- 1.5.0
+ 1.5.0-RC1
jar
@@ -26,7 +26,7 @@
ml.dmlc
xgboost4j-spark_${scala.binary.version}
- 1.5.0
+ 1.5.0-RC1
org.apache.spark
@@ -37,7 +37,7 @@
ml.dmlc
xgboost4j-flink_${scala.binary.version}
- 1.5.0
+ 1.5.0-RC1
org.apache.commons
diff --git a/jvm-packages/xgboost4j-flink/pom.xml b/jvm-packages/xgboost4j-flink/pom.xml
index ba962568feed..bcfd7d5969be 100644
--- a/jvm-packages/xgboost4j-flink/pom.xml
+++ b/jvm-packages/xgboost4j-flink/pom.xml
@@ -6,10 +6,10 @@
ml.dmlc
xgboost-jvm_2.12
- 1.5.0
+ 1.5.0-RC1
xgboost4j-flink_2.12
- 1.5.0
+ 1.5.0-RC1
@@ -26,7 +26,7 @@
ml.dmlc
xgboost4j_${scala.binary.version}
- 1.5.0
+ 1.5.0-RC1
org.apache.commons
diff --git a/jvm-packages/xgboost4j-gpu/pom.xml b/jvm-packages/xgboost4j-gpu/pom.xml
index 067d03e75fa2..4aa5af1abccb 100644
--- a/jvm-packages/xgboost4j-gpu/pom.xml
+++ b/jvm-packages/xgboost4j-gpu/pom.xml
@@ -6,10 +6,10 @@
ml.dmlc
xgboost-jvm_2.12
- 1.5.0
+ 1.5.0-RC1
xgboost4j-gpu_2.12
- 1.5.0
+ 1.5.0-RC1
jar
diff --git a/jvm-packages/xgboost4j-spark-gpu/pom.xml b/jvm-packages/xgboost4j-spark-gpu/pom.xml
index dc05aefc8d45..e9a31fa968b9 100644
--- a/jvm-packages/xgboost4j-spark-gpu/pom.xml
+++ b/jvm-packages/xgboost4j-spark-gpu/pom.xml
@@ -6,7 +6,7 @@
ml.dmlc
xgboost-jvm_2.12
- 1.5.0
+ 1.5.0-RC1
xgboost4j-spark-gpu_2.12
@@ -24,7 +24,7 @@
ml.dmlc
xgboost4j-gpu_${scala.binary.version}
- 1.5.0
+ 1.5.0-RC1
org.apache.spark
diff --git a/jvm-packages/xgboost4j-spark/pom.xml b/jvm-packages/xgboost4j-spark/pom.xml
index d0b3b677355a..b41b640dd61f 100644
--- a/jvm-packages/xgboost4j-spark/pom.xml
+++ b/jvm-packages/xgboost4j-spark/pom.xml
@@ -6,7 +6,7 @@
ml.dmlc
xgboost-jvm_2.12
- 1.5.0
+ 1.5.0-RC1
xgboost4j-spark_2.12
@@ -24,7 +24,7 @@
ml.dmlc
xgboost4j_${scala.binary.version}
- 1.5.0
+ 1.5.0-RC1
org.apache.spark
diff --git a/jvm-packages/xgboost4j/pom.xml b/jvm-packages/xgboost4j/pom.xml
index 86efca4c85d4..93c40b9a85e0 100644
--- a/jvm-packages/xgboost4j/pom.xml
+++ b/jvm-packages/xgboost4j/pom.xml
@@ -6,10 +6,10 @@
ml.dmlc
xgboost-jvm_2.12
- 1.5.0
+ 1.5.0-RC1
xgboost4j_2.12
- 1.5.0
+ 1.5.0-RC1
jar
diff --git a/python-package/xgboost/VERSION b/python-package/xgboost/VERSION
index bc80560fad66..6994d9efaf5c 100644
--- a/python-package/xgboost/VERSION
+++ b/python-package/xgboost/VERSION
@@ -1 +1 @@
-1.5.0
+1.5.0rc1