diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1a864cb1f..a90524b32 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,7 @@
 
 cmake_minimum_required(VERSION 3.5.1)
 
-project(libgit2 VERSION "1.8.2" LANGUAGES C)
+project(libgit2 VERSION "1.9.0" LANGUAGES C)
 
 # Add find modules to the path
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${PROJECT_SOURCE_DIR}/cmake")
diff --git a/include/git2/version.h b/include/git2/version.h
index d512bbb06..8acffca9c 100644
--- a/include/git2/version.h
+++ b/include/git2/version.h
@@ -19,16 +19,16 @@ GIT_BEGIN_DECL
  * The version string for libgit2.  This string follows semantic
  * versioning (v2) guidelines.
  */
-#define LIBGIT2_VERSION           "1.8.2"
+#define LIBGIT2_VERSION           "1.9.0"
 
 /** The major version number for this version of libgit2. */
 #define LIBGIT2_VERSION_MAJOR      1
 
 /** The minor version number for this version of libgit2. */
-#define LIBGIT2_VERSION_MINOR      8
+#define LIBGIT2_VERSION_MINOR      9
 
 /** The revision ("teeny") version number for this version of libgit2. */
-#define LIBGIT2_VERSION_REVISION   2
+#define LIBGIT2_VERSION_REVISION   0
 
 /** The Windows DLL patch number for this version of libgit2. */
 #define LIBGIT2_VERSION_PATCH      0
@@ -44,9 +44,9 @@ GIT_BEGIN_DECL
 /**
  * The library ABI soversion for this version of libgit2. This should
  * only be changed when the library has a breaking ABI change, and so
- * may trail the library's version number.
+ * may not reflect the library's API version number.
  */
-#define LIBGIT2_SOVERSION         "1.8"
+#define LIBGIT2_SOVERSION         "2.0"
 
 /**
  * An integer value representing the libgit2 version number. For example,
diff --git a/package.json b/package.json
index df10dee27..2bea37ef3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "libgit2",
-  "version": "1.8.2",
+  "version": "1.9.0",
   "repo": "https://github.com/libgit2/libgit2",
   "description": " A cross-platform, linkable library implementation of Git that you can use in your application.",
   "install": "mkdir build && cd build && cmake .. && cmake --build ."