diff --git a/CRAN-SUBMISSION b/CRAN-SUBMISSION
deleted file mode 100644
index 3ee57a2..0000000
--- a/CRAN-SUBMISSION
+++ /dev/null
@@ -1,3 +0,0 @@
-Version: 1.1.0
-Date: 2023-04-10 12:37:28 UTC
-SHA: 7ce849e22ca493e334be349f3c81c7fb8b3acd02
diff --git a/DESCRIPTION b/DESCRIPTION
index efea296..30ba8d9 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: forestploter
 Title: Create Flexible Forest Plot
-Version: 1.1.1
+Version: 1.1.2
 Authors@R: person(given="Alimu", 
                  family = "Dayimu",
                  email = "ad938@cam.ac.uk",
diff --git a/NEWS.md b/NEWS.md
index 50e3ee4..c067a18 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,7 @@
+# forestploter 1.1.2
+
+* Draw reference line and other vertical lines under whiskers.
+
 # forestploter 1.1.1
 
 * Improved `ticks_digits` auto calculation.
diff --git a/R/forest.R b/R/forest.R
index 6ad8daf..2518c76 100644
--- a/R/forest.R
+++ b/R/forest.R
@@ -483,6 +483,8 @@ forest <- function(data,
                           t = 2,
                           l = j,
                           b = tot_row, r = j,
+                          # Make sure reference line is below the whisker
+                          z = max(gt$layout$z[grepl("core-", gt$layout$name)]),
                           clip = "off",
                           name = paste0("ref.line-", j))
 
@@ -504,6 +506,7 @@ forest <- function(data,
                             t = 2,
                             l = j,
                             b = tot_row, r = j,
+                            z = max(gt$layout$z[grepl("core-", gt$layout$name)]),
                             clip = "off",
                             name = paste0("vert.line-", j))
 
diff --git a/cran-comments.md b/cran-comments.md
index a869f25..5c0edc7 100644
--- a/cran-comments.md
+++ b/cran-comments.md
@@ -11,4 +11,4 @@ There were no ERRORs or WARNINGs.
 
 ---
 
-This version includes 1 bug fix and 6 improvement. 
+This version includes 1 bug fix improvement. 
diff --git a/tests/testthat/Rplots.pdf b/tests/testthat/Rplots.pdf
index d4a3f32..f0fc511 100644
Binary files a/tests/testthat/Rplots.pdf and b/tests/testthat/Rplots.pdf differ
diff --git a/tests/testthat/_snaps/addgrob/add-grob-body.svg b/tests/testthat/_snaps/addgrob/add-grob-body.svg
index db0db17..dfaa3c0 100644
--- a/tests/testthat/_snaps/addgrob/add-grob-body.svg
+++ b/tests/testthat/_snaps/addgrob/add-grob-body.svg
@@ -288,6 +288,7 @@
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@@ -304,7 +305,6 @@
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diff --git a/tests/testthat/_snaps/addgrob/add-grob-header.svg b/tests/testthat/_snaps/addgrob/add-grob-header.svg
index 5a8f00e..549e7c3 100644
--- a/tests/testthat/_snaps/addgrob/add-grob-header.svg
+++ b/tests/testthat/_snaps/addgrob/add-grob-header.svg
@@ -287,6 +287,7 @@
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@@ -303,7 +304,6 @@
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diff --git a/tests/testthat/_snaps/forest/arrow-end.svg b/tests/testthat/_snaps/forest/arrow-end.svg
index 11af438..037ecf4 100644
--- a/tests/testthat/_snaps/forest/arrow-end.svg
+++ b/tests/testthat/_snaps/forest/arrow-end.svg
@@ -119,6 +119,7 @@
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@@ -133,7 +134,6 @@
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diff --git a/tests/testthat/_snaps/forest/arrow-start.svg b/tests/testthat/_snaps/forest/arrow-start.svg
index 658ce87..8253a19 100644
--- a/tests/testthat/_snaps/forest/arrow-start.svg
+++ b/tests/testthat/_snaps/forest/arrow-start.svg
@@ -119,6 +119,7 @@
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diff --git a/tests/testthat/_snaps/forest/different-sizes.svg b/tests/testthat/_snaps/forest/different-sizes.svg
index ca32131..b2b348f 100644
--- a/tests/testthat/_snaps/forest/different-sizes.svg
+++ b/tests/testthat/_snaps/forest/different-sizes.svg
@@ -144,6 +144,7 @@
 <text x='507.52' y='330.17' style='font-size: 12.00px; font-family: sans;' textLength='78.03px' lengthAdjust='spacingAndGlyphs'>NA (NA to NA)</text>
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@@ -158,7 +159,6 @@
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diff --git a/tests/testthat/_snaps/forest/edit-plot-with-theme.svg b/tests/testthat/_snaps/forest/edit-plot-with-theme.svg
index b467bd2..1ae85c9 100644
--- a/tests/testthat/_snaps/forest/edit-plot-with-theme.svg
+++ b/tests/testthat/_snaps/forest/edit-plot-with-theme.svg
@@ -210,6 +210,7 @@
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diff --git a/tests/testthat/_snaps/forest/insert-text-vector.svg b/tests/testthat/_snaps/forest/insert-text-vector.svg
index 846b7d1..f9dd0f2 100644
--- a/tests/testthat/_snaps/forest/insert-text-vector.svg
+++ b/tests/testthat/_snaps/forest/insert-text-vector.svg
@@ -210,6 +210,7 @@
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diff --git a/tests/testthat/_snaps/forest/multiple-columns-and-multi-parameters.svg b/tests/testthat/_snaps/forest/multiple-columns-and-multi-parameters.svg
index 9495bd8..57d2fdb 100644
--- a/tests/testthat/_snaps/forest/multiple-columns-and-multi-parameters.svg
+++ b/tests/testthat/_snaps/forest/multiple-columns-and-multi-parameters.svg
@@ -216,6 +216,12 @@
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diff --git a/tests/testthat/_snaps/forest/multiple-columns.svg b/tests/testthat/_snaps/forest/multiple-columns.svg
index 7234a96..68587eb 100644
--- a/tests/testthat/_snaps/forest/multiple-columns.svg
+++ b/tests/testthat/_snaps/forest/multiple-columns.svg
@@ -216,6 +216,8 @@
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diff --git a/tests/testthat/_snaps/forest/multiple-groups.svg b/tests/testthat/_snaps/forest/multiple-groups.svg
index 937c17d..9e0eb7e 100644
--- a/tests/testthat/_snaps/forest/multiple-groups.svg
+++ b/tests/testthat/_snaps/forest/multiple-groups.svg
@@ -58,6 +58,7 @@
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diff --git a/tests/testthat/_snaps/forest/simple-forest-plot-with-theme.svg b/tests/testthat/_snaps/forest/simple-forest-plot-with-theme.svg
index c0d52c7..db20a6f 100644
--- a/tests/testthat/_snaps/forest/simple-forest-plot-with-theme.svg
+++ b/tests/testthat/_snaps/forest/simple-forest-plot-with-theme.svg
@@ -210,6 +210,7 @@
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diff --git a/tests/testthat/_snaps/forest/simple-forest-plot.svg b/tests/testthat/_snaps/forest/simple-forest-plot.svg
index e8f1ea2..4794ee8 100644
--- a/tests/testthat/_snaps/forest/simple-forest-plot.svg
+++ b/tests/testthat/_snaps/forest/simple-forest-plot.svg
@@ -210,6 +210,7 @@
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diff --git a/tests/testthat/_snaps/forest/summary-ci.svg b/tests/testthat/_snaps/forest/summary-ci.svg
index 404c313..4126367 100644
--- a/tests/testthat/_snaps/forest/summary-ci.svg
+++ b/tests/testthat/_snaps/forest/summary-ci.svg
@@ -210,6 +210,7 @@
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diff --git a/tests/testthat/_snaps/forest/x-scale-log10.svg b/tests/testthat/_snaps/forest/x-scale-log10.svg
index cdde68b..9793afb 100644
--- a/tests/testthat/_snaps/forest/x-scale-log10.svg
+++ b/tests/testthat/_snaps/forest/x-scale-log10.svg
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diff --git a/tests/testthat/_snaps/forest/x-scale-log2.svg b/tests/testthat/_snaps/forest/x-scale-log2.svg
index 57c2199..b60118b 100644
--- a/tests/testthat/_snaps/forest/x-scale-log2.svg
+++ b/tests/testthat/_snaps/forest/x-scale-log2.svg
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diff --git a/tests/testthat/_snaps/make-boxplot/boxplot-groups.svg b/tests/testthat/_snaps/make-boxplot/boxplot-groups.svg
index d075551..a5e8999 100644
--- a/tests/testthat/_snaps/make-boxplot/boxplot-groups.svg
+++ b/tests/testthat/_snaps/make-boxplot/boxplot-groups.svg
@@ -34,6 +34,7 @@
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 <text x='284.43' y='305.02' style='font-size: 12.00px; font-family: sans;' textLength='130.01px' lengthAdjust='spacingAndGlyphs'>                                       </text>
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diff --git a/tests/testthat/_snaps/make-boxplot/boxplot-single.svg b/tests/testthat/_snaps/make-boxplot/boxplot-single.svg
index 543d350..16da462 100644
--- a/tests/testthat/_snaps/make-boxplot/boxplot-single.svg
+++ b/tests/testthat/_snaps/make-boxplot/boxplot-single.svg
@@ -46,6 +46,7 @@
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