diff --git a/G/GAP_pkg/GAP_pkg_semigroups/build_tarballs.jl b/G/GAP_pkg/GAP_pkg_semigroups/build_tarballs.jl
index 491c79d1298..b894edf2616 100644
--- a/G/GAP_pkg/GAP_pkg_semigroups/build_tarballs.jl
+++ b/G/GAP_pkg/GAP_pkg_semigroups/build_tarballs.jl
@@ -2,16 +2,16 @@
 # `julia build_tarballs.jl --help` to see a usage message.
 include("../common.jl")
 
-gap_version = v"400.1401.5"
+gap_version = v"400.1500.0"
 name = "semigroups"
-upstream_version = "5.4.0" # when you increment this, reset offset to v"0.0.0"
-offset = v"0.0.4" # increment this when rebuilding with unchanged upstream_version, e.g. gap_version changes
+upstream_version = "5.5.4" # when you increment this, reset offset to v"0.0.0"
+offset = v"1.0.0" # increment this when rebuilding with unchanged upstream_version, e.g. gap_version changes
 version = offset_version(upstream_version, offset)
 
 # Collection of sources required to build this JLL
 sources = [
     ArchiveSource("https://github.com/semigroups/Semigroups/releases/download/v$(upstream_version)/semigroups-$(upstream_version).tar.gz",
-                  "9a22d6c6cd2a99392e286b6a4636258cdf50a308655dc11f444696aa4880d98e"),
+                  "df0488b14af106338009c0ae7dc8b7def9052fb3619a6ba53c31f60cc0731353"),
 ]
 
 # Bash recipe for building across all platforms