diff --git a/src/vendor/cigraph/CHANGELOG.md b/src/vendor/cigraph/CHANGELOG.md
index 7f9ed9b980..4130bc79cd 100644
--- a/src/vendor/cigraph/CHANGELOG.md
+++ b/src/vendor/cigraph/CHANGELOG.md
@@ -1,5 +1,7 @@
 # igraph C library changelog
 
+## [master]
+
 ## [0.10.15]
 
 ### Added
diff --git a/src/vendor/igraph_version.h b/src/vendor/igraph_version.h
index c6c1f64a81..fea50a9275 100644
--- a/src/vendor/igraph_version.h
+++ b/src/vendor/igraph_version.h
@@ -28,11 +28,11 @@
 
 __BEGIN_DECLS
 
-#define IGRAPH_VERSION "0.10.15"
+#define IGRAPH_VERSION "0.10.15-1-ga16619502"
 #define IGRAPH_VERSION_MAJOR 0
 #define IGRAPH_VERSION_MINOR 10
 #define IGRAPH_VERSION_PATCH 15
-#define IGRAPH_VERSION_PRERELEASE "cmake-experimental"
+#define IGRAPH_VERSION_PRERELEASE "1-ga16619502"
 
 IGRAPH_EXPORT void igraph_version(const char **version_string,
                                   int *major,