diff --git a/pkgs/development/perl-modules/Compress-Raw-Bzip2/default.nix b/pkgs/development/perl-modules/Compress-Raw-Bzip2/default.nix
index 6515efada6f..32dc5a01606 100644
--- a/pkgs/development/perl-modules/Compress-Raw-Bzip2/default.nix
+++ b/pkgs/development/perl-modules/Compress-Raw-Bzip2/default.nix
@@ -1,11 +1,11 @@
 { fetchurl, buildPerlPackage, bzip2 }:
 
 buildPerlPackage rec {
-  name = "Compress-Raw-Bzip2-2.049";
+  name = "Compress-Raw-Bzip2-2.055";
 
   src = fetchurl {
     url = "mirror://cpan/modules/by-module/Compress/${name}.tar.gz";
-    sha256 = "7881473e0ab5ecc6ce609382e4f7466fb32217e928eef27e7084702bb07ac172";
+    sha256 = "1qssagii3xy87lsnlq5y7cngasiiq7jmbi1s6lcwwfhv36ydlmx8";
   };
 
   # Don't build a private copy of bzip2.
diff --git a/pkgs/development/perl-modules/Compress-Raw-Zlib/default.nix b/pkgs/development/perl-modules/Compress-Raw-Zlib/default.nix
index c2c7b5f8363..f8cdc7b9279 100644
--- a/pkgs/development/perl-modules/Compress-Raw-Zlib/default.nix
+++ b/pkgs/development/perl-modules/Compress-Raw-Zlib/default.nix
@@ -1,11 +1,11 @@
 { fetchurl, buildPerlPackage, zlib, stdenv }:
 
 buildPerlPackage rec {
-  name = "Compress-Raw-Zlib-2.051";
+  name = "Compress-Raw-Zlib-2.056";
 
   src = fetchurl {
     url = "mirror://cpan/modules/by-module/Compress/${name}.tar.gz";
-    sha256 = "16c7e0d2ed339c0b5ffe787bbcc9fc063ce6f2145d8cd6a18d0c79fa68d36c09";
+    sha256 = "08cbgbrfx718r1n9d8hzmv7ssnhw41b0pwg7fw6dcq3svqhmwkyl";
   };
 
   preConfigure = ''
diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index eeba996990d..3e7eceae5c1 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -2027,10 +2027,10 @@ rec {
   };
 
   IOCompress = buildPerlPackage rec {
-    name = "IO-Compress-2.037";
+    name = "IO-Compress-2.055";
     src = fetchurl {
       url = "mirror://cpan/modules/by-module/IO/${name}.tar.gz";
-      sha256 = "07hs3afzg9ry6ir2f9rf3fg8b129cihs989mr0nh9wdvxgxqmr1q";
+      sha256 = "0hxgic4m4wdwgwa15w5f2fhn9hd8jyrimd2rvhiav321zw9w3jg7";
     };
     propagatedBuildInputs = [ CompressRawBzip2 CompressRawZlib ];
     # Work around a self-referencing Makefile variable.