diff --git a/anselm.csv b/anselm.csv
index 303fa0263229b88b904ec4c622fd3338f716bc64..ac7ab720bb7736172e52d0e847aad847613637d3 100644
--- a/anselm.csv
+++ b/anselm.csv
@@ -380,6 +380,7 @@ gompi/2017a,1
 gompi/2017b,1
 gompi/2018a,1
 gperf/3.0.4-intel-2017a,1
+gperftools/2.7-GCC-6.3.0-2.27,1
 gpi2/1.0.2,1
 gpi2/1.1.0,1
 gpi2/1.1.1,1
@@ -638,6 +639,7 @@ libunistring/0.9.3,1
 libunistring/0.9.3-foss-2016a,1
 libunistring/0.9.3-intel-2015b,1
 libunwind/1.2,1
+libunwind/1.2.1,1
 LibUUID/1.0.3,1
 libX11/1.6.2-Python-2.7.9,1
 libX11/1.6.3,1
diff --git a/anselm.md b/anselm.md
index 640a912e134bf11aee5cee903989bf3d942f5ba6..a39733decc48ad10e0903e4f398b06ad1182faea 100644
--- a/anselm.md
+++ b/anselm.md
@@ -510,6 +510,7 @@
 | [git](http://git-scm.com/) | Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency. |
 | [GLPK](https://www.gnu.org/software/glpk/) | The GLPK (GNU Linear Programming Kit) package is intended for solving large-scale linear programming (LP), mixed integer programming (MIP), and other related problems. It is a set of routines written in ANSI C and organized in the form of a callable library. |
 | gnuplot |   |
+| [gperftools](http://github.com/gperftools/gperftools) | gperftools are for use by developers so that they can create more robust applications. Especially of use to those developing multi-threaded applications in C++ with templates. Includes TCMalloc, heap-checker, heap-profiler and cpu-profiler. |
 | grace |   |
 | [Graph500](http://graph500.org/) | Reference code of the Graph500 benchmark. |
 | [gzip](http://www.gnu.org/software/gzip/) | gzip (GNU zip) is a popular data compression program as a replacement for compress |