diff --git a/pkgs/development/libraries/git2/default.nix b/pkgs/development/libraries/git2/default.nix
index 873865cdf837..8d52f190d016 100644
--- a/pkgs/development/libraries/git2/default.nix
+++ b/pkgs/development/libraries/git2/default.nix
@@ -5,14 +5,14 @@
 
 stdenv.mkDerivation rec {
   pname = "libgit2";
-  version = "0.99.0";
+  version = "1.0.0";
   # keep the version in sync with python3.pkgs.pygit2 and libgit2-glib
 
   src = fetchFromGitHub {
     owner = "libgit2";
     repo = "libgit2";
     rev = "v${version}";
-    sha256 = "0qxzv49ip378g1n7hrbifb9c6pys2kj1hnxcafmbb94gj3pgd9kg";
+    sha256 = "06cwrw93ycpfb5kisnsa5nsy95pm11dbh0vvdjg1jn25h9q5d3vc";
   };
 
   cmakeFlags = [