diff --git a/check_caveats b/check_caveats
index b821160..38b5923 100755
--- a/check_caveats
+++ b/check_caveats
@@ -5,6 +5,8 @@
 #
 # SPDX-License-Identifier: CC0-1.0
 
+export LC_ALL=C
+
 : ${MC_CAVEATS_DATA_DIR=/usr/share/microcode_ctl/ucode_with_caveats}
 : ${FW_DIR=/lib/firmware}
 : ${CFG_DIR=/etc/microcode_ctl/ucode_with_caveats}
diff --git a/microcode_ctl.spec b/microcode_ctl.spec
index 6dcfb00..57419a6 100644
--- a/microcode_ctl.spec
+++ b/microcode_ctl.spec
@@ -13,7 +13,7 @@
 Summary:        CPU microcode updates for Intel x86 processors
 Name:           microcode_ctl
 Version:        %{intel_ucode_version}
-Release:        2%{?dist}
+Release:        3%{?dist}
 Epoch:          4
 License:        CC0 and Redistributable, no modification permitted
 URL:            https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files
@@ -544,6 +544,10 @@ rm -rf %{buildroot}
 
 
 %changelog
+* Wed Jun 28 2023 Eugene Syromiatnikov <esyr@redhat.com> - 4:20230214-3
+- Force locale to C in check_caveats, reload_microcode, and update_ucode
+  (#2218096).
+
 * Tue Jun 06 2023 Eugene Syromiatnikov <esyr@redhat.com> - 4:20230214-2
 - Cleanup the dangling symlinks in update_ucode (#2135376).
 
diff --git a/reload_microcode b/reload_microcode
index 5d4d1b1..978f939 100644
--- a/reload_microcode
+++ b/reload_microcode
@@ -5,6 +5,8 @@
 #
 # SPDX-License-Identifier: CC0-1.0
 
+export LC_ALL=C
+
 CHECK_CAVEATS=/usr/libexec/microcode_ctl/check_caveats
 IGNORE_HYPERVISOR="/etc/microcode_ctl/ignore-hypervisor-flag"
 
diff --git a/update_ucode b/update_ucode
index 57705e0..932cff7 100644
--- a/update_ucode
+++ b/update_ucode
@@ -5,6 +5,8 @@
 #
 # SPDX-License-Identifier: CC0-1.0
 
+export LC_ALL=C
+
 usage()
 {
 	echo "Usage: update_ucode [--action {add|remove|refresh|list}]" \