diff --git a/srcpkgs/nim/template b/srcpkgs/nim/template
index 9a2247db455..2f691870035 100644
--- a/srcpkgs/nim/template
+++ b/srcpkgs/nim/template
@@ -1,9 +1,9 @@
 # Template file for 'nim'
 pkgname=nim
-version=0.19.4
+version=0.20.0
 revision=1
-_cversion=0.19.0
-_nimbleversion=0.9.0
+_cversion=0.20.0
+_nimbleversion=0.10.2
 create_wrksrc=yes
 build_wrksrc=Nim-$version
 hostmakedepends="ed"
@@ -15,9 +15,9 @@ homepage="https://nim-lang.org/"
 distfiles="https://github.com/nim-lang/Nim/archive/v${version}.tar.gz
  https://github.com/nim-lang/csources/archive/v${_cversion}.tar.gz>csources-${_cversion}.tar.gz
  https://github.com/nim-lang/nimble/archive/v${_nimbleversion}.tar.gz>nimble-${_nimbleversion}.tar.gz"
-checksum="172cf80be15f9cab6d0ba802be98a739dd1083243d4df69e1c2c67c0298db118
- 68042afae0b24915acac813b52b9ee0a303219e990d3bfa05ca57fb6bbc51578
- d02cc0b1787fa30e6d88a1ee7aa067c1555b7763d2716742d1d10132df550456"
+checksum="53f96a92cd1a46360b1fab44720d331536bbd18993a81746e973af46fdad8fbb
+ 5e6fd15d90df1a8cb7614c4ffc70aa8c4198cd854d7742016202b96dd0228d3c
+ ef62b38ad41f9d84b4c9206b10541f1dc7498edda16b2031d96eaa873f4f9730"
 
 post_extract() {
 	mv csources-$_cversion $build_wrksrc/csources
@@ -27,7 +27,7 @@ post_extract() {
 
 do_build() {
 	cd csources
-	CC=gcc LD=gcc CFLAGS= LDFLAGS= sh build.sh
+	CC=cc LD=cc CFLAGS="-Os -pipe" LDFLAGS= sh build.sh
 	cd ..
 
 	ed lib/wrappers/openssl.nim <<-EDIT