diff --git a/programming/build/llvm/actions.py b/programming/build/llvm/actions.py
index c53c09a20b..464653c43a 100644
--- a/programming/build/llvm/actions.py
+++ b/programming/build/llvm/actions.py
@@ -89,7 +89,6 @@ def setup():
                           -DLLVM_ENABLE_EH=ON \
                           -DLLVM_BUILD_LLVM_DYLIB=ON \
                           -DLLVM_LINK_LLVM_DYLIB=ON \
-                          -DLLVM_ENABLE_LTO=Thin \
                           -DLLDB_USE_SYSTEM_SIX=1 \
                           -DLLVM_INCLUDEDIR=/usr/include \
                           -DLLVM_ENABLE_ASSERTIONS=OFF \
diff --git a/programming/build/llvm/pspec.xml b/programming/build/llvm/pspec.xml
index 93e01030d5..a8cd34bd9d 100755
--- a/programming/build/llvm/pspec.xml
+++ b/programming/build/llvm/pspec.xml
@@ -23,7 +23,7 @@
             <Dependency>swig</Dependency>
             <Dependency>libedit-devel</Dependency>
             <Dependency versionFrom="3.18.3">cmake</Dependency>
-            <Dependency versionFrom="3.8.6">python3-devel</Dependency>
+            <Dependency versionFrom="3.9.7">python3-devel</Dependency>
             <!-- Use new plugin-api.h header file from binutils to enable LLVM gold plugin -->
 <!--            <Dependency>binutils</Dependency-->
 <!--             <Dependency>gcc</Dependency> -->
@@ -85,7 +85,7 @@
         </RuntimeDependencies>
         <Files>
             <Path fileType="library">/usr/lib/libLLVM*.so</Path>
-            <Path fileType="library">/usr/lib/libLLVM*.so.12</Path>
+            <Path fileType="library">/usr/lib/libLLVM*.so.13</Path>
             <Path fileType="library">/usr/lib/LLVMgold.*</Path>
             <Path fileType="library">/usr/lib/libLTO.*</Path>
             <Path fileType="library">/usr/lib/libRemarks.so*</Path>
@@ -114,7 +114,7 @@
             <Path fileType="library">/usr/lib/liblldb.so*</Path>
             <Path fileType="library">/usr/lib/liblldb*</Path>
             <Path fileType="library">/usr/lib/python2.7/site-packages/readline.so</Path>
-            <Path fileType="library">/usr/lib/python3.8/site-packages/lldb/*</Path>
+            <Path fileType="library">/usr/lib/python3.9/site-packages/lldb/*</Path>
             <Path fileType="library">/usr/lib/liblldbIntelFeatures.so*</Path>
             <Path fileType="library">/usr/lib/liblldbPluginExpressionParserClang.a</Path>
             <Path fileType="library">/usr/lib/liblldbPluginObjCLanguage.a</Path>
@@ -201,7 +201,7 @@
             <Dependency>libgcc</Dependency>
         </RuntimeDependencies>
         <Files>
-            <Path fileType="library">/usr/lib/clang/12.0.1/lib/linux/*.so</Path>
+            <Path fileType="library">/usr/lib/clang/13.0.0/lib/linux/*.so</Path>
         </Files>
     </Package>
 
@@ -253,7 +253,7 @@
         </RuntimeDependencies>
         <Files>
             <Path fileType="header">/usr/include/clang</Path>
-            <Path fileType="header">/usr/lib/clang/12.0.1/include</Path>
+            <Path fileType="header">/usr/lib/clang/13.0.0/include</Path>
             <Path fileType="header">/usr/include/clang-c</Path>
             <Path fileType="header">/usr/include/clang-tidy</Path>
         </Files>
@@ -331,14 +331,14 @@
     </Package>
 
     <History>
-	<Update release="19">
+        <Update release="19">
             <Date>2021-10-22</Date>
             <Version>13.0.0</Version>
             <Comment>Version bump.</Comment>
             <Name>İdris Kalp</Name>
             <Email>idriskalp@gmail.com</Email>
         </Update>
-	<Update release="18">
+        <Update release="18">
             <Date>2021-07-10</Date>
             <Version>12.0.1</Version>
             <Comment>Version bump</Comment>