diff --git a/profiles/package.mask b/profiles/package.mask
index 02cd371260e28..30be5e259c080 100644
--- a/profiles/package.mask
+++ b/profiles/package.mask
@@ -190,11 +190,6 @@ dev-python/commentjson
 dev-python/pyx
 dev-python/sphinx-selective-exclude
 
-# Michał Górny <mgorny@gentoo.org> (2026-06-20)
-# Both packages are completely broken and do not install correctly.
-# Removal on 2026-07-20.  Bug #977003.
-sci-chemistry/GromacsWrapper
-
 # Michał Górny <mgorny@gentoo.org> (2026-06-19)
 # dev-python/pytrie is broken on Python 3.14 and has not been touched
 # since 2020.  dev-python/autobahn and dev-python/txaio have become
diff --git a/sci-chemistry/GromacsWrapper/GromacsWrapper-0.9.1.ebuild b/sci-chemistry/GromacsWrapper/GromacsWrapper-0.9.1.ebuild
deleted file mode 100644
index d768da0c597da..0000000000000
--- a/sci-chemistry/GromacsWrapper/GromacsWrapper-0.9.1.ebuild
+++ /dev/null
@@ -1,38 +0,0 @@
-# Copyright 1999-2026 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-PYTHON_COMPAT=( python3_{12..13} )
-DISTUTILS_USE_PEP517=setuptools
-
-if [[ ${PV} = *9999* ]]; then
-	scm_eclass=git-r3
-	EGIT_REPO_URI="https://github.com/Becksteinlab/${PN}.git"
-	EGIT_BRANCH="develop"
-else
-	scm_eclass=vcs-snapshot
-	SRC_URI="https://github.com/Becksteinlab/${PN}/archive/release-${PV}.tar.gz -> ${P}.tar.gz"
-	KEYWORDS="~amd64 ~x86"
-fi
-
-inherit distutils-r1 ${scm_eclass}
-
-DESCRIPTION="Python framework for Gromacs"
-HOMEPAGE="https://gromacswrapper.readthedocs.io"
-
-LICENSE="GPL-3 LGPL-3"
-SLOT="0"
-
-RDEPEND="
-	dev-python/six[${PYTHON_USEDEP}]
-	dev-python/numpy[${PYTHON_USEDEP}]
-	dev-python/matplotlib[${PYTHON_USEDEP}]
-	sci-libs/numkit[${PYTHON_USEDEP}]
-"
-BDEPEND="
-	${RDEPEND}
-	test? ( >=dev-python/pandas-0.17[${PYTHON_USEDEP}] )
-"
-
-distutils_enable_tests pytest
diff --git a/sci-chemistry/GromacsWrapper/Manifest b/sci-chemistry/GromacsWrapper/Manifest
deleted file mode 100644
index 847d1b70cc94c..0000000000000
--- a/sci-chemistry/GromacsWrapper/Manifest
+++ /dev/null
@@ -1 +0,0 @@
-DIST GromacsWrapper-0.9.1.tar.gz 1942919 BLAKE2B 295df8896aa3d92b5e1832c3b5a3a8eb2f3a9ae7e7d5a90a62fb449f0f76cf0235ba0cfdce2476c67903514579da399765f5e236c11cd781b959388f2273fa84 SHA512 f9c326dc669605f61a2b9adce64120a88f14369294e8692a078d489b18d8135fd9285c8947860d640c48ad1910f53f4e3d646f26c12dae55996f6462543be9b0
diff --git a/sci-chemistry/GromacsWrapper/metadata.xml b/sci-chemistry/GromacsWrapper/metadata.xml
deleted file mode 100644
index 0096486f68a86..0000000000000
--- a/sci-chemistry/GromacsWrapper/metadata.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
-<pkgmetadata>
-  <maintainer type="person">
-    <email>alexxy@gentoo.org</email>
-    <name>Alexey Shvetsov</name>
-  </maintainer>
-  <maintainer type="project">
-    <email>sci-chemistry@gentoo.org</email>
-    <name>Gentoo Chemistry Project</name>
-  </maintainer>
-  <upstream>
-    <remote-id type="github">Becksteinlab/GromacsWrapper</remote-id>
-  </upstream>
-</pkgmetadata>