diff --git a/.gitignore b/.gitignore
index 61fbcb9..66fa952 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,4 @@
 /v3.7.2.tar.gz
 /v3.7.3.tar.gz
 /v3.8.0.tar.gz
+/json_test_data-2.0.0.tar.gz
diff --git a/json.spec b/json.spec
index 13095b5..7e4ff6f 100644
--- a/json.spec
+++ b/json.spec
@@ -1,4 +1,5 @@
-%global debug_package   %{nil}
+%global debug_package %{nil}
+%global test_data_version 2.0.0
 
 Name:           json
 Version:        3.8.0
@@ -9,6 +10,7 @@ License:        MIT
 # test/catch.hpp: Boost Software License, Version 1.0
 URL:            https://github.com/nlohmann/%{name}
 Source0:        %{url}/archive/v%{version}.tar.gz
+Source1:        https://github.com/nlohmann/json_test_data/archive/v%{test_data_version}/json_test_data-%{test_data_version}.tar.gz
 
 BuildRequires:  ninja-build
 BuildRequires:  gcc-c++
@@ -18,6 +20,9 @@ BuildRequires:  cmake3
 BuildRequires:  cmake
 %endif
 
+# Workaround to https://github.com/nlohmann/json/issues/2189
+BuildRequires:  git
+
 %description
 This is a packages version of the nlohmann/json header-only C++
 library available at Github.
@@ -36,9 +41,18 @@ applications that use %{name}.
 %autosetup
 mkdir -p %{_target_platform}
 
+# Extracting json_test_data...
+pushd %{_target_platform}
+    tar -xf %{SOURCE1}
+    mv json_test_data-%{test_data_version} json_test_data
+popd
+
 # Some tests are broken: https://github.com/nlohmann/json/issues/887
 sed -e '/unit-regression/d' -i test/CMakeLists.txt
 
+# Some tests require access to the Internet...
+sed -e '/cmake_fetch_content/d' -i test/CMakeLists.txt
+
 %build
 pushd %{_target_platform}
 %if 0%{?rhel} && 0%{?rhel} == 7
diff --git a/sources b/sources
index 994b78d..e3520f8 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (v3.8.0.tar.gz) = cb629ca1fc89298755374aa23098eb7a05ba47fb248acef85e96c57cb42303f7c5250df2c22f442bfb53796a72e7107554f49abdfb9e7991fe010c8fb0e2b1df
+SHA512 (json_test_data-2.0.0.tar.gz) = eb08a31b09929a027cdacded2e11b9caf47fa0079619c0fa67bcb766bff1be1642a11c8ccd2f4c48521387fe1d42625d4f53f6a063a290d4664b17813f784051