diff --git a/CHANGES b/CHANGES
index c82fcf811..793136812 100644
--- a/CHANGES
+++ b/CHANGES
@@ -23,6 +23,7 @@ Bugs fixed
 * #4689: autosummary: unexpectedly strips docstrings containing "i.e."
 * #4701: viewcode: Misplaced ``<div>`` in viewcode html output
 * #4444: Don't require numfig to use :numref: on sections
+* #4727: Option clash for package textcomp
 
 Testing
 --------
diff --git a/sphinx/templates/latex/latex.tex_t b/sphinx/templates/latex/latex.tex_t
index 4fd8b1fec..34086b1cb 100644
--- a/sphinx/templates/latex/latex.tex_t
+++ b/sphinx/templates/latex/latex.tex_t
@@ -14,6 +14,7 @@
    \let\sphinxpxdimen\pdfpxdimen\else\newdimen\sphinxpxdimen
 \fi \sphinxpxdimen=<%= pxunit %>\relax
 <%= passoptionstopackages %>
+\PassOptionsToPackage{warn}{textcomp}
 <%= inputenc %>
 <%= utf8extra %>
 <%= cmappkg %>
diff --git a/sphinx/texinputs/sphinx.sty b/sphinx/texinputs/sphinx.sty
index 075ae408b..e323b2a5d 100644
--- a/sphinx/texinputs/sphinx.sty
+++ b/sphinx/texinputs/sphinx.sty
@@ -6,7 +6,7 @@
 %
 
 \NeedsTeXFormat{LaTeX2e}[1995/12/01]
-\ProvidesPackage{sphinx}[2017/12/12 v1.7 LaTeX package (Sphinx markup)]
+\ProvidesPackage{sphinx}[2018/03/11 v1.7.2 LaTeX package (Sphinx markup)]
 
 % provides \ltx@ifundefined
 % (many packages load ltxcmds: graphicx does for pdftex and lualatex but
@@ -39,7 +39,7 @@
 \@ifclassloaded{memoir}{}{\RequirePackage{fancyhdr}}
 % for \text macro and \iffirstchoice@ conditional even if amsmath not loaded
 \RequirePackage{amstext}
-\RequirePackage[warn]{textcomp}
+\RequirePackage{textcomp}% "warn" option issued from template
 \RequirePackage{titlesec}
 \@ifpackagelater{titlesec}{2016/03/15}%
  {\@ifpackagelater{titlesec}{2016/03/21}%