diff --git a/.gitignore b/.gitignore
index ecc5f1d..f2f630e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -507,3 +507,5 @@ firefox-3.6.4.source.tar.bz2
 /firefox-99.0.1.source.tar.xz
 /firefox-100.0.source.tar.xz
 /firefox-langpacks-100.0-20220502.tar.xz
+/firefox-100.0.1.source.tar.xz
+/firefox-langpacks-100.0.1-20220518.tar.xz
diff --git a/firefox.spec b/firefox.spec
index 13b52e2..5a6f4cb 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -162,13 +162,13 @@ ExcludeArch: aarch64
 
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
-Version:        100.0
-Release:        4%{?pre_tag}%{?dist}
+Version:        100.0.1
+Release:        1%{?pre_tag}%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Source0:        https://archive.mozilla.org/pub/firefox/releases/%{version}%{?pre_version}/source/firefox-%{version}%{?pre_version}.source.tar.xz
 %if %{with langpacks}
-Source1:        firefox-langpacks-%{version}%{?pre_version}-20220502.tar.xz
+Source1:        firefox-langpacks-%{version}%{?pre_version}-20220518.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source10:       firefox-mozconfig
@@ -1050,6 +1050,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Wed May 18 2022 Martin Stransky <stransky@redhat.com>- 100.0.1-1
+- Updated to 100.0.1
+
 * Mon May 9 2022 Martin Stransky <stransky@redhat.com>- 100.0-4
 - Added fix for mozbz#1767916.
 
diff --git a/sources b/sources
index 32377fc..d0ad2a3 100644
--- a/sources
+++ b/sources
@@ -1,4 +1,4 @@
 SHA512 (cbindgen-vendor.tar.xz) = b9ab1498be90ecf60822df7021f8812f124550d97f8cd687c69d3ab56fc5fb714bfe88c78c978a1794d211724909a9a5cad6a4b483fa05f762909c45d5075520
 SHA512 (mochitest-python.tar.gz) = 18e1aeb475df5fbf1fe3838897d5ac2f3114aa349030713fc2be27af087b1b12f57642621b87bd052f324a7cb7fbae5f36b21502191d85692f62c8cdd69c8bf2
-SHA512 (firefox-100.0.source.tar.xz) = 29c56391c980209ff94c02a9aba18fe27bea188bdcbcf7fe0c0f27f61e823f4507a3ec343b27cb5285cf3901843e9cc4aca8e568beb623c4b69b7282e662b2aa
-SHA512 (firefox-langpacks-100.0-20220502.tar.xz) = 38e91cf8d6df6cf455891563f72090d1f277750f62f7a8c3cf5afd1d0a7aa2e1a6b47e65fc9d8419305ec2075c0ff3de41dbb7b5251790ff1bf3cd1f7db7bbbb
+SHA512 (firefox-100.0.1.source.tar.xz) = 6ba09542d1573e903978f8e63f39381dcf2180219e80e7401c62c8347100d6d4a973208b8094cff07d76106636cdfef93829fff3398011fd9536dac477ef118e
+SHA512 (firefox-langpacks-100.0.1-20220518.tar.xz) = 008dbcf1e6f8dc193bf4939f4fb42559ab38fd410ba9fc10c765378b7e6d174ef869f0475abd863cfe7c3f5ff6e0f701588f53ba1d57c756cbf5ea11981a8ab6