diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index cb67ccc..c1a79aa 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.3.0
+current_version = 1.3.1
 commit = True
 tag = False
 tag_name = {new_version}
@@ -16,5 +16,5 @@ search = APP_VERSION := {current_version}
 replace = APP_VERSION := {new_version}
 
 [bumpversion:file:RELEASE.txt]
-search = {current_version} 2025-08-07T15:15:34Z
+search = {current_version} 2026-05-13T14:54:45Z
 replace = {new_version} {utcnow:%Y-%m-%dT%H:%M:%SZ}
diff --git a/Makefile b/Makefile
index 048b3e5..c72c57d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 override SHELL       := bash
 override APP_NAME    := marble_client
-override APP_VERSION := 1.3.0
+override APP_VERSION := 1.3.1
 
 # utility to remove comments after value of an option variable
 override clean_opt = $(shell echo "$(1)" | $(_SED) -r -e "s/[ '$'\t'']+$$//g")
diff --git a/RELEASE.txt b/RELEASE.txt
index 8834d73..9e5002c 100644
--- a/RELEASE.txt
+++ b/RELEASE.txt
@@ -1 +1 @@
-1.3.0 2025-08-07T15:15:34Z
\ No newline at end of file
+1.3.1 2026-05-13T14:54:45Z
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index a015501..a13dfe6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ license = {file = "LICENSE"}
 name = "marble_client"
 readme = "README.md"
 requires-python = ">=3.9"
-version = "1.3.0"
+version = "1.3.1"
 
 [project.urls]
 # Homepage will change to Marble homepage when that goes live