diff --git a/CHANGELOG.org b/CHANGELOG.org
index 1870441..9b8da5f 100644
--- a/CHANGELOG.org
+++ b/CHANGELOG.org
@@ -24,6 +24,15 @@ This project adheres to [[http://semver.org][Semantic Versioning]].
    Add the flycheck-posframe faces: ~flycheck-posframe-background-face~,
    ~flycheck-posframe-border-face~. And variables: ~flycheck-posframe-border-width~.
 
+** CHANGED the background colors of org blocks
+
+   Instead of showing an underline and an overline for the beginning and end
+   blocks, give them a background color. With the variable
+   =org-fontify-whole-block-delimiter-line= set to =t=, this causes it to create a
+   line-thick border at the top and bottom of the block. The background of the
+   block itself has been changed to match that of other highlighted backgrounds,
+   such as the posframe pop-ups for ivy and company.
+
 * [[https://github.com/ryuslash/yoshi-theme/compare/v6.1.0...v6.2.0][6.2.0]] -- 2019-05-05
 :PROPERTIES:
 :CUSTOM_ID: release-6.2.0
diff --git a/yoshi-theme.el b/yoshi-theme.el
index 8e089f5..b6e7273 100644
--- a/yoshi-theme.el
+++ b/yoshi-theme.el
@@ -381,9 +381,10 @@
    `(org-agenda-date-weekend ((t (:foreground ,fgcyan))))
    `(org-agenda-done ((t (:foreground ,fgorange))))
    `(org-agenda-structure ((t (:foreground ,fgblue))))
+   `(org-block ((t (:foreground ,fgdefault :background ,bgdim :inherit unspecified))))
    `(org-block-background ((t (:background ,bgdim))))
-   `(org-block-begin-line ((t (:foreground ,fgdefault :slant unspecified :underline ,fgdim))))
-   `(org-block-end-line ((t (:foreground ,fgdefault :slant unspecified :overline ,fgdim))))
+   `(org-block-begin-line ((t (:foreground ,fgdefault :slant unspecified :background ,bgbright))))
+   `(org-block-end-line ((t (:foreground ,fgdefault :slant unspecified :background ,bgbright))))
    `(org-checkbox-statistics-done ((t (:foreground ,bgcyan))))
    `(org-checkbox-statistics-todo ((t (:foreground ,fgcyan))))
    `(org-date ((t (:foreground ,fgpink :underline unspecified))))