diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 87cad95c5..f1ddce772 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.7.2
+current_version = 2.7.3-alpha
 commit = True
 tag = False
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\-(?P<release>[a-z]+))?
diff --git a/Doxyfile b/Doxyfile
index 86ebbf100..717134b65 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = SensESP
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2.7.2
+PROJECT_NUMBER         = 2.7.3-alpha
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/VERSION b/VERSION
index 37c2961c2..7acffb098 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.7.2
+2.7.3-alpha
diff --git a/library.json b/library.json
index aee1086ac..61ca35304 100644
--- a/library.json
+++ b/library.json
@@ -66,7 +66,7 @@
       "version": "^1.10.1"
     }
   ],
-  "version": "2.7.2",
+  "version": "2.7.3-alpha",
   "frameworks": "arduino",
   "platforms": ["espressif32"]
 }
diff --git a/library.properties b/library.properties
index 3983329cc..dba82343f 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=SensESP
-version=2.7.2
+version=2.7.3-alpha
 author=Matti Airas <mairas@iki.fi>
 maintainer=Matti Airas <mairas@iki.fi>
 sentence=Signal K sensor development library for ESP devices
diff --git a/src/sensesp/sensesp_version.h b/src/sensesp/sensesp_version.h
index a075929f6..17fa163d9 100644
--- a/src/sensesp/sensesp_version.h
+++ b/src/sensesp/sensesp_version.h
@@ -3,7 +3,7 @@
 
 namespace sensesp {
 
-const char* const kSensESPVersion = "2.7.2";
+const char* const kSensESPVersion = "2.7.3-alpha";
 
 }