diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c07d0911..0e9c2895a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -48,7 +48,7 @@ can't be accessed directly.
 
 Updated DPDK submodule to DPDK 21.08.
 
-## v21.07:
+## v21.07
 
 ### accel_fw
 
@@ -237,7 +237,7 @@ Added zipf random number generator with power law probability distribution.
 When applied to performance testing of block devices, it will select blocks over
 the full range of LBAs, but will more frequently select lower-numbered LBAs.
 
-## v21.04:
+## v21.04
 
 ### accel
 
@@ -449,7 +449,7 @@ into or out of interrupt mode.
 
 Added the `bdev_virtio_blk_set_hotplug` RPC for the virtio blk pci device.
 
-## v21.01:
+## v21.01
 
 ### bdev
 
@@ -630,7 +630,7 @@ into `bdev_set_options` function.
 Added optional `packed_ring_recovery` parameter to `vhost_create_blk_controller` RPC
 enabling packed ring live recovery.
 
-## v20.10:
+## v20.10
 
 ### accel
 
diff --git a/mdl_rules.rb b/mdl_rules.rb
index 1a93ea45f..f51fbc93f 100644
--- a/mdl_rules.rb
+++ b/mdl_rules.rb
@@ -4,7 +4,6 @@ exclude_rule 'MD004'
 exclude_rule 'MD010'
 rule 'MD013', :line_length => 170
 exclude_rule 'MD024'
-exclude_rule 'MD026'
 exclude_rule 'MD027'
 exclude_rule 'MD028'
 exclude_rule 'MD029'