diff --git a/doc/binary_c2.lyx b/doc/binary_c2.lyx
index 071ab0fc31f26a543e092db4d3c7df1b0fb138be..48df5ed74d66cdad7d260626cf8fcd4a57115f52 100644
--- a/doc/binary_c2.lyx
+++ b/doc/binary_c2.lyx
@@ -2027,7 +2027,7 @@ Perl
 
 \end_inset
 
- (note that below I use version 5.31.11 – a newer version is probably available).
+.
  
 \begin_inset listings
 inline false
@@ -2035,6 +2035,11 @@ status open
 
 \begin_layout Plain Layout
 
+wget --no-check-certificate -O - http://install.perlbrew.pl | bash
+\end_layout
+
+\begin_layout Plain Layout
+
 export NTHREADS=`cat /proc/cpuinfo |grep cpu
 \backslash
  famil|wc -l`
@@ -2057,14 +2062,9 @@ export LATEST_PERL=`perlbrew available | grep
 
 \begin_layout Plain Layout
 
-wget --no-check-certificate -O - http://install.perlbrew.pl | bash
-\end_layout
-
-\begin_layout Plain Layout
-
-perlbrew -v install perl-5.31.11 --thread --multi --64bitall --notest -Dusethreads
- -Duselargefiles -Dcccdlflags=-fPIC -Dpager=/usr/bin/sensible-pager -Doptimize="
--O3 -mtune=generic" -Duseshrplib -j $NTHREADS
+perlbrew -v install $LATEST_PERL --thread --multi --64bitall --notest -Dusethrea
+ds -Duselargefiles -Dcccdlflags=-fPIC -Dpager=/usr/bin/sensible-pager -Doptimize
+="-O3 -mtune=generic" -Duseshrplib -j $NTHREADS
 \end_layout
 
 \end_inset
diff --git a/src/perl/modules_targz/Binning-0.03.tar.gz b/src/perl/modules_targz/Binning-0.03.tar.gz
index f1af871eff5f66e6ba46b99735f04f9a6f34425f..cfd7ee62d1a0e6c4a196a060d8931544306eeb3b 100644
Binary files a/src/perl/modules_targz/Binning-0.03.tar.gz and b/src/perl/modules_targz/Binning-0.03.tar.gz differ
diff --git a/src/perl/modules_targz/Data-Serializer-RobJSON-0.05.tar.gz b/src/perl/modules_targz/Data-Serializer-RobJSON-0.05.tar.gz
index 8434af5516c003b30a9931300b4f138f2d966b1b..18c5a249d395f831f514a6f33020a8edebce51c1 100644
Binary files a/src/perl/modules_targz/Data-Serializer-RobJSON-0.05.tar.gz and b/src/perl/modules_targz/Data-Serializer-RobJSON-0.05.tar.gz differ
diff --git a/src/perl/modules_targz/Hash-RobMerge-0.14.tar.gz b/src/perl/modules_targz/Hash-RobMerge-0.14.tar.gz
index f8f32ee48f1bde1e52394de6e76e5eaa855d6955..abb5033161439ec09764e4a9f8d1da98539f6cf7 100644
Binary files a/src/perl/modules_targz/Hash-RobMerge-0.14.tar.gz and b/src/perl/modules_targz/Hash-RobMerge-0.14.tar.gz differ
diff --git a/src/perl/modules_targz/Histogram-0.01.tar.gz b/src/perl/modules_targz/Histogram-0.01.tar.gz
index eae1b7e21c4adbe9b5ed9f2ca310221e07abf2cd..db37d1ee2fbc1533aab8a68ffaa956dfd4af6955 100644
Binary files a/src/perl/modules_targz/Histogram-0.01.tar.gz and b/src/perl/modules_targz/Histogram-0.01.tar.gz differ
diff --git a/src/perl/modules_targz/IMF-0.05.tar.gz b/src/perl/modules_targz/IMF-0.05.tar.gz
index 2d1a552a796ba9f4dec8cb848742dea8c2ede1f7..39504b73174598040d1d5354e760f7928b2e7925 100644
Binary files a/src/perl/modules_targz/IMF-0.05.tar.gz and b/src/perl/modules_targz/IMF-0.05.tar.gz differ
diff --git a/src/perl/modules_targz/Maths_Double-0.01.tar.gz b/src/perl/modules_targz/Maths_Double-0.01.tar.gz
index 4c14c888ee8d59850c3dc15af7e1c394c14e8061..097724ccb63a7d5091e23f4c4357bc82958ee4db 100644
Binary files a/src/perl/modules_targz/Maths_Double-0.01.tar.gz and b/src/perl/modules_targz/Maths_Double-0.01.tar.gz differ
diff --git a/src/perl/modules_targz/binary_grid-v2.1.7.tar.gz b/src/perl/modules_targz/binary_grid-v2.1.7.tar.gz
index ccd8ad4e951e8b7e93303df6756b13331522a35f..87d81932fc5cc3f1ceb9e1eb8ddee41ec9d07ab5 100644
Binary files a/src/perl/modules_targz/binary_grid-v2.1.7.tar.gz and b/src/perl/modules_targz/binary_grid-v2.1.7.tar.gz differ
diff --git a/src/perl/modules_targz/binary_stars-0.05.tar.gz b/src/perl/modules_targz/binary_stars-0.05.tar.gz
index 85bc79452d26f8d46a36b97ae4eda6065cb3763b..47bc443bba3a499625b8cdad80a31ff9e5e8cda8 100644
Binary files a/src/perl/modules_targz/binary_stars-0.05.tar.gz and b/src/perl/modules_targz/binary_stars-0.05.tar.gz differ
diff --git a/src/perl/modules_targz/cosmology-0.01.tar.gz b/src/perl/modules_targz/cosmology-0.01.tar.gz
index 4a6251a892b545c970fa9b150dc553ee3386a21a..0702e6d5b18ad2e512d3422c0ad9a58199fd3c42 100644
Binary files a/src/perl/modules_targz/cosmology-0.01.tar.gz and b/src/perl/modules_targz/cosmology-0.01.tar.gz differ
diff --git a/src/perl/modules_targz/distribution_functions-0.06.tar.gz b/src/perl/modules_targz/distribution_functions-0.06.tar.gz
index 2be1c4f147f9d2f351e0aa9db15ad1eadd8e155a..c40fb18944fcbf39bdc32f8232311d58ffef49ba 100644
Binary files a/src/perl/modules_targz/distribution_functions-0.06.tar.gz and b/src/perl/modules_targz/distribution_functions-0.06.tar.gz differ
diff --git a/src/perl/modules_targz/rinterpolate-1.5.tar.gz b/src/perl/modules_targz/rinterpolate-1.5.tar.gz
index df51dc838c93eca2a912d00477274b29f81c0629..50a1179c82c195de701622ef72ee4bd17636966c 100644
Binary files a/src/perl/modules_targz/rinterpolate-1.5.tar.gz and b/src/perl/modules_targz/rinterpolate-1.5.tar.gz differ
diff --git a/src/perl/modules_targz/rob_misc-0.17.tar.gz b/src/perl/modules_targz/rob_misc-0.17.tar.gz
index b80ab8c6a21c7a7e6fc6a7d25b95358687bfc891..05caf8bff21c98e0d6d66bcf4bab00b33662f280 100644
Binary files a/src/perl/modules_targz/rob_misc-0.17.tar.gz and b/src/perl/modules_targz/rob_misc-0.17.tar.gz differ
diff --git a/src/perl/modules_targz/robqueue-0.05.tar.gz b/src/perl/modules_targz/robqueue-0.05.tar.gz
index 84175410becdf772922b203264121fe0f9d71476..c38c0fd1df536ae1a3d1a6ecae7c0cab6a9f1cb0 100644
Binary files a/src/perl/modules_targz/robqueue-0.05.tar.gz and b/src/perl/modules_targz/robqueue-0.05.tar.gz differ
diff --git a/src/perl/modules_targz/spacing_functions-0.02.tar.gz b/src/perl/modules_targz/spacing_functions-0.02.tar.gz
index 9307cc0d48f011b96a899cb5be687affe3c5dd01..cb1a0d941865328212352830f44284c64776c61c 100644
Binary files a/src/perl/modules_targz/spacing_functions-0.02.tar.gz and b/src/perl/modules_targz/spacing_functions-0.02.tar.gz differ