diff --git a/.gitignore b/.gitignore
index fbcb9a5..6ada537 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 /kalzium-17.12.0.tar.xz
 /kalzium-17.12.1.tar.xz
 /kalzium-17.12.2.tar.xz
+/kalzium-17.12.3.tar.xz
diff --git a/kalzium-AvogadroLibs_INCLUDE_DIRS.patch b/kalzium-AvogadroLibs_INCLUDE_DIRS.patch
deleted file mode 100644
index fab71f4..0000000
--- a/kalzium-AvogadroLibs_INCLUDE_DIRS.patch
+++ /dev/null
@@ -1,11 +0,0 @@
-diff -up kalzium-17.12.2/compoundviewer/CMakeLists.txt.avo kalzium-17.12.2/compoundviewer/CMakeLists.txt
---- kalzium-17.12.2/compoundviewer/CMakeLists.txt.avo	2018-01-16 08:27:12.000000000 -0600
-+++ kalzium-17.12.2/compoundviewer/CMakeLists.txt	2018-02-12 11:21:18.721518605 -0600
-@@ -2,6 +2,7 @@ include_directories(
-     ${CMAKE_CURRENT_BINARY_DIR}/..
-     ${EIGEN3_INCLUDE_DIR}
-     ${OPENBABEL2_INCLUDE_DIR} ${OPENGL_INCLUDE_DIRS}
-+    ${AvogadroLibs_INCLUDE_DIRS}
-     ${PROJECT_SOURCE_DIR}/compoundviewer
- )
- 
diff --git a/kalzium.spec b/kalzium.spec
index a8c688a..3935e7c 100644
--- a/kalzium.spec
+++ b/kalzium.spec
@@ -15,8 +15,8 @@
 
 Name:    kalzium
 Summary: Periodic Table of Elements
-Version: 17.12.2
-Release: 6%{?dist}
+Version: 17.12.3
+Release: 1%{?dist}
 
 License: GPLv2+
 URL:     https://edu.kde.org/kalzium/
@@ -160,6 +160,9 @@ desktop-file-validate %{buildroot}%{_kf5_datadir}/applications/org.kde.kalzium_c
 
 
 %changelog
+* Fri Mar 30 2018 Rex Dieter <rdieter@fedoraproject.org> - 17.12.3-1
+- 17.12.3
+
 * Thu Mar 15 2018 Iryna Shcherbina <ishcherb@redhat.com> - 17.12.2-6
 - Update Python 2 dependency declarations to new packaging standards
   (See https://fedoraproject.org/wiki/FinalizingFedoraSwitchtoPython3)
diff --git a/sources b/sources
index 91fa841..c353fc2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (kalzium-17.12.2.tar.xz) = 2f2c4ed44cd0302b63819a4b6ec0ec15038aae74f825b30ae84ccb15eb593380b77a6de84a11d94dd20ae9e66225ad977e8d127b3c120bcaa02950ffe62737c7
+SHA512 (kalzium-17.12.3.tar.xz) = 989e35f617ef019036571103c1fa4df7fb64238fd2cb7c909798b7baaacb1ebc64d6c989c07040a5c46f3db240edf2e415c11ab4a480eb2f532f1ed992af4fb1