diff --git a/.gitignore b/.gitignore
index e60b84e..1e1b665 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /profvis_0.3.6.tar.gz
+/profvis_0.3.7.tar.gz
diff --git a/R-profvis.spec b/R-profvis.spec
index 1703f2a..da400eb 100644
--- a/R-profvis.spec
+++ b/R-profvis.spec
@@ -1,10 +1,12 @@
+%bcond_without bootstrap
+
 %global packname profvis
-%global packver  0.3.6
+%global packver  0.3.7
 %global rlibdir  %{_libdir}/R/library
 
 Name:             R-%{packname}
-Version:          0.3.6
-Release:          7%{?dist}
+Version:          0.3.7
+Release:          1%{?dist}
 Summary:          Interactive Visualizations for Profiling R Code
 
 License:          GPLv3
@@ -22,6 +24,7 @@ BuildRequires:    R-devel
 BuildRequires:    tex(latex)
 BuildRequires:    R-htmlwidgets >= 0.3.2
 BuildRequires:    R-stringr
+%if %{without bootstrap}
 BuildRequires:    R-knitr
 BuildRequires:    R-ggplot2
 BuildRequires:    R-rmarkdown
@@ -29,6 +32,7 @@ BuildRequires:    R-testthat
 BuildRequires:    R-devtools
 BuildRequires:    R-shiny
 BuildRequires:    R-htmltools
+%endif
 
 Provides:         bundled(js-highlight) = 6.2.0
 Provides:         bundled(js-jquery1) = 1.12.4
@@ -53,7 +57,9 @@ rm -f %{buildroot}%{rlibdir}/R.css
 
 
 %check
+%if %{without bootstrap}
 %{_bindir}/R CMD check %{packname}
+%endif
 
 
 %files
@@ -76,6 +82,11 @@ rm -f %{buildroot}%{rlibdir}/R.css
 
 
 %changelog
+* Tue Jun 15 2021 Tom Callaway <spot@fedoraproject.org> - 0.3.7-1
+- update to 0.3.7
+- bootstrap
+- Rebuilt for R 4.1.0
+
 * Mon Jan 25 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.6-7
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
diff --git a/sources b/sources
index 3a9e4c7..a772f17 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (profvis_0.3.6.tar.gz) = 342cb62cdedd4ebb9a562ed504f473f778af3822bb02d114c082f7b1c867f7a6bdc8651e9cbe0c1b21d874989a0af9fc74d52145b5cf6bb6840888db17a78a4d
+SHA512 (profvis_0.3.7.tar.gz) = 9ae232def68e2d8a9ddd2e5fc20cee3ea05941a68bff6441ebe15e2f8eb14293d128056f01d46c662c680a86129822ab417356a5a73336bb08e4e6fad82f8483