diff --git a/libixion-0.17.0.tar.xz b/libixion-0.17.0.tar.xz
deleted file mode 100644
index 682ceb8..0000000
--- a/libixion-0.17.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:53c97139223f3b786d498f86512a20ee878fab0ef981947647aa116df7c4101e
-size 499836
diff --git a/libixion-0.18.1.tar.xz b/libixion-0.18.1.tar.xz
new file mode 100644
index 0000000..d4e042f
--- /dev/null
+++ b/libixion-0.18.1.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ec2327854601d41bd38f151bc94b47ef43f0b8258a551e41e9f5e19b9ad729c1
+size 521024
diff --git a/libixion.changes b/libixion.changes
index 2433615..c3cd41f 100644
--- a/libixion.changes
+++ b/libixion.changes
@@ -1,3 +1,20 @@
+-------------------------------------------------------------------
+Thu Jun 29 13:27:14 UTC 2023 - Danilo Spinella <danilo.spinella@suse.com>
+
+- Update to 0.18.1:
+  * fixed a 32-bit Linux build issue as discovered on Debian, due to a clash on
+  two 32-bit unsigned integer types being used with std::variant.
+- Update to 0.18.0:
+  * removed the formula_model_access interface from model_context, and switched
+    to using model_context directly everywhere.
+  * revised formula_tokens_t type to remove use of std::unique_ptr for each
+    formula_token instance.  This should improve memory locality when
+    iterating through an array of formula token values.  A similar change has
+    also been made to lexer_tokens_t and lexer_token types.
+  * added 41 built-in functions
+  * added support for multi-sheet references in Excel A1 and Excel R1C1
+    grammers.
+
 -------------------------------------------------------------------
 Thu Mar  2 10:52:36 UTC 2023 - Martin Liška <mliska@suse.cz>
 
diff --git a/libixion.spec b/libixion.spec
index 4f7b118..31c75fc 100644
--- a/libixion.spec
+++ b/libixion.spec
@@ -17,9 +17,9 @@
 
 
 %{!?make_build:%global make_build make %{?_smp_mflags}}
-%define libname libixion-0_17-0
+%define libname libixion-0_18-0
 Name:           libixion
-Version:        0.17.0
+Version:        0.18.1
 Release:        0
 Summary:        Threaded multi-target formula parser & interpreter
 License:        MIT
@@ -34,7 +34,7 @@ BuildRequires:  libstdc++-devel
 BuildRequires:  libtool
 BuildRequires:  libtool
 BuildRequires:  pkgconfig
-BuildRequires:  pkgconfig(mdds-2.0)
+BuildRequires:  pkgconfig(mdds-2.1)
 BuildRequires:  pkgconfig(python3)
 BuildRequires:  pkgconfig(spdlog) >= 0.16.0
 %if 0%{?suse_version} > 1325