diff --git a/Dockerfile b/Dockerfile
index 6e3d138..b02227f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,12 +8,11 @@
 ENV PATH /usr/local/go/bin:$GOPATH/bin:$PATH
 ENV GOROOT_BOOTSTRAP /usr/local/gobootstrap
 ENV CGO_ENABLED=0
-ENV GO_VERSION 1.10.3
+ENV GO_VERSION 1.11.1
 ENV BUILD_DEPS 'curl bzip2 git gcc patch libc6-dev ca-certificates'
 
 # Fake time
 COPY enable-fake-time.patch /usr/local/playground/
-COPY strict-time.patch /usr/local/playground/
 # Fake file system
 COPY fake_fs.lst /usr/local/playground/
 
@@ -30,7 +29,6 @@
 RUN cp -R /usr/local/go $GOROOT_BOOTSTRAP
 # Apply the fake time and fake filesystem patches.
 RUN patch /usr/local/go/src/runtime/rt0_nacl_amd64p32.s /usr/local/playground/enable-fake-time.patch
-RUN patch -p1 -d /usr/local/go </usr/local/playground/strict-time.patch
 RUN cd /usr/local/go && go run misc/nacl/mkzip.go -p syscall /usr/local/playground/fake_fs.lst src/syscall/fstest_nacl.go
 # Re-build the Go toolchain.
 RUN cd /usr/local/go/src && GOOS=nacl GOARCH=amd64p32 ./make.bash --no-clean
diff --git a/strict-time.patch b/strict-time.patch
deleted file mode 100644
index 86e663d..0000000
--- a/strict-time.patch
+++ /dev/null
@@ -1,83 +0,0 @@
-From 9fd794d3a2e2b02688fe3a42c4c2c6d19d8dd668 Mon Sep 17 00:00:00 2001
-From: "Bryan C. Mills" <bcmills@google.com>
-Date: Fri, 6 Apr 2018 16:19:30 -0400
-Subject: [PATCH] runtime: make Playground timestamps change when the stream fd
- changes
-
-The process reading the output of the binary may read stderr and
-stdout separately, and may interleave reads from the two streams
-arbitrarily. Because we explicitly serialize writes on the writer
-side, we can reuse a timestamp within a single stream without losing
-information; however, if we use the same timestamp for write on both
-streams, the reader can't tell how to interleave them.
-
-This change ensures that every time we change between the two fds, we
-also bump the timestamp. That way, writes within a stream continue to
-show the same timestamp, but a sorted merge of the contents of the two
-streams always interleaves them in the correct order.
-
-This still requires a corresponding change to the Playground parser to
-actually reconstruct the correct interleaving. It currently merges the
-two streams without reordering them; it should instead buffer them
-separately and perform a sorted merge. (See
-https://golang.org/cl/105496.)
-
-Updates golang/go#24615.
-Updates golang/go#24659.
-
-Change-Id: Id789dfcc02eb4247906c9ddad38dac50cf829979
----
- src/runtime/os_nacl.go          |  9 +++++++++
- src/runtime/sys_nacl_amd64p32.s | 16 ++++++++++++++++
- 2 files changed, 25 insertions(+)
-
-diff --git a/src/runtime/os_nacl.go b/src/runtime/os_nacl.go
-index d03cb8faf2..7b8a7d548e 100644
---- a/src/runtime/os_nacl.go
-+++ b/src/runtime/os_nacl.go
-@@ -289,6 +289,15 @@ type gsignalStack struct{}
- 
- var writelock uint32 // test-and-set spin lock for write
- 
-+// lastfaketime stores the last faketime value written to fd 1 or 2.
-+var lastfaketime int64
-+
-+// lastfaketimefd stores the fd to which lastfaketime was written.
-+//
-+// Subsequent writes to the same fd may use the same timestamp,
-+// but the timestamp must increase if the fd changes.
-+var lastfaketimefd int32
-+
- /*
- An attempt at IRT. Doesn't work. See end of sys_nacl_amd64.s.
- 
-diff --git a/src/runtime/sys_nacl_amd64p32.s b/src/runtime/sys_nacl_amd64p32.s
-index ff4c2e7bb5..4c4d509576 100644
---- a/src/runtime/sys_nacl_amd64p32.s
-+++ b/src/runtime/sys_nacl_amd64p32.s
-@@ -89,6 +89,22 @@ playback:
- 	CMPL BX, $0
- 	JNE playback
- 
-+	MOVQ runtime·lastfaketime(SB), CX
-+	MOVL runtime·lastfaketimefd(SB), BX
-+	CMPL DI, BX
-+	JE samefd
-+
-+	// If the current fd doesn't match the fd of the previous write,
-+	// ensure that the timestamp is strictly greater. That way, we can
-+	// recover the original order even if we read the fds separately.
-+	INCQ CX
-+	MOVL DI, runtime·lastfaketimefd(SB)
-+
-+samefd:
-+	CMPQ AX, CX
-+	CMOVQLT CX, AX
-+	MOVQ AX, runtime·lastfaketime(SB)
-+
- 	// Playback header: 0 0 P B <8-byte time> <4-byte data length>
- 	MOVL $(('B'<<24) | ('P'<<16)), 0(SP)
- 	BSWAPQ AX
--- 
-2.17.0.484.g0c8726318c-goog
-