diff --git a/CMakeLists.txt b/CMakeLists.txt
index 074c4642e2..8a50914c3c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,8 +11,8 @@ include(InstallLocation)
 include(DetermineVersion)
 
 # Set up our version.
-set(AvogadroLibs_VERSION_MAJOR   "0")
-set(AvogadroLibs_VERSION_MINOR   "9")
+set(AvogadroLibs_VERSION_MAJOR   "1")
+set(AvogadroLibs_VERSION_MINOR   "90")
 set(AvogadroLibs_VERSION_PATCH   "0")
 set(AvogadroLibs_VERSION
   "${AvogadroLibs_VERSION_MAJOR}.${AvogadroLibs_VERSION_MINOR}.${AvogadroLibs_VERSION_PATCH}")