diff --git a/.travis.yml b/.travis.yml
index 132a3f1eb..fd31e3d50 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -139,7 +139,7 @@ jobs:
       git:
         submodules: false # avoid cloning ethereum/tests
       before_install:
-        - curl https://dl.google.com/go/go1.15.linux-amd64.tar.gz | tar -xz
+        - curl https://dl.google.com/go/go1.15.5.linux-amd64.tar.gz | tar -xz
         - export PATH=`pwd`/go/bin:$PATH
         - export GOROOT=`pwd`/go
         - export GOPATH=$HOME/go
diff --git a/appveyor.yml b/appveyor.yml
index eec726a65..2bf67d456 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -24,8 +24,8 @@ environment:
 install:
   - git submodule update --init
   - rmdir C:\go /s /q
-  - appveyor DownloadFile https://dl.google.com/go/go1.15.windows-%GETH_ARCH%.zip
-  - 7z x go1.15.windows-%GETH_ARCH%.zip -y -oC:\ > NUL
+  - appveyor DownloadFile https://dl.google.com/go/go1.15.5.windows-%GETH_ARCH%.zip
+  - 7z x go1.15.5.windows-%GETH_ARCH%.zip -y -oC:\ > NUL
   - go version
   - gcc --version
 
diff --git a/build/checksums.txt b/build/checksums.txt
index d7a07d1ef..32b376519 100644
--- a/build/checksums.txt
+++ b/build/checksums.txt
@@ -1,13 +1,13 @@
 # This file contains sha256 checksums of optional build dependencies.
 
-063da6a9a4186b8118a0e584532c8c94e65582e2cd951ed078bfd595d27d2367  go1.15.4.src.tar.gz
-aaf8c5323e0557211680960a8f51bedf98ab9a368775a687d6cf1f0079232b1d  go1.15.4.darwin-amd64.tar.gz
-6b2f6d8afddfb198bf0e36044084dc4db4cb0be1107375240b34d215aa5ff6ad  go1.15.4.linux-386.tar.gz
-eb61005f0b932c93b424a3a4eaa67d72196c79129d9a3ea8578047683e2c80d5  go1.15.4.linux-amd64.tar.gz
-6f083b453484fc5f95afb345547a58ccc957cde91348b7a7c68f5b060e488c85  go1.15.4.linux-arm64.tar.gz
-fe449ad3e121472e5db2f70becc0fef9d1a7188616c0605ada63f1e3bbad280e  go1.15.4.linux-armv6l.tar.gz
-3be3cfc08ccc7e7056fdee17b6f5d18e9d7f3d1351dcfec8de34b1c95cb05b50  go1.15.4.windows-386.zip
-3593204e3851be577e4209900ece031b36f1e9ce1671f3f3221c9af7a090a941  go1.15.4.windows-amd64.zip
+c1076b90cf94b73ebed62a81d802cd84d43d02dea8c07abdc922c57a071c84f1  go1.15.5.src.tar.gz
+359a4334b8c8f5e3067e5a76f16419791ac3fef4613d8e8e1eac0b9719915f6d  go1.15.5.darwin-amd64.tar.gz
+4c8179d406136979724c71732009c7e2e7c794dbeaaa2a043c00da34d4be0559  go1.15.5.linux-386.tar.gz
+9a58494e8da722c3aef248c9227b0e9c528c7318309827780f16220998180a0d  go1.15.5.linux-amd64.tar.gz
+a72a0b036beb4193a0214bca3fca4c5d68a38a4ccf098c909f7ce8bf08567c48  go1.15.5.linux-arm64.tar.gz
+5ea6456620d3efed5dda99238c7f23866eafdd915e5348736e631bc283c0238a  go1.15.5.linux-armv6l.tar.gz
+d812436c7e3482ba3c97172edf26afaf35aca60a5621ff4a5f6a08386505ab9c  go1.15.5.windows-386.zip
+1d24be3a200201a74be25e4134fbec467750e834e84e9c7789a9fc13248c5507  go1.15.5.windows-amd64.zip
 
 d998a84eea42f2271aca792a7b027ca5c1edfcba229e8e5a844c9ac3f336df35  golangci-lint-1.27.0-linux-armv7.tar.gz
 bf781f05b0d393b4bf0a327d9e62926949a4f14d7774d950c4e009fc766ed1d4  golangci-lint.exe-1.27.0-windows-amd64.zip
diff --git a/build/ci.go b/build/ci.go
index 9fa6c7142..0cffb903a 100644
--- a/build/ci.go
+++ b/build/ci.go
@@ -151,7 +151,7 @@ var (
 	// This is the version of go that will be downloaded by
 	//
 	//     go run ci.go install -dlgo
-	dlgoVersion = "1.15.4"
+	dlgoVersion = "1.15.5"
 )
 
 var GOBIN, _ = filepath.Abs(filepath.Join("build", "bin"))
diff --git a/params/version.go b/params/version.go
index 656a78e58..c0f356889 100644
--- a/params/version.go
+++ b/params/version.go
@@ -21,10 +21,10 @@ import (
 )
 
 const (
-	VersionMajor = 1          // Major version component of the current release
-	VersionMinor = 9          // Minor version component of the current release
-	VersionPatch = 24         // Patch version component of the current release
-	VersionMeta  = "unstable" // Version metadata to append to the version string
+	VersionMajor = 1        // Major version component of the current release
+	VersionMinor = 9        // Minor version component of the current release
+	VersionPatch = 24       // Patch version component of the current release
+	VersionMeta  = "stable" // Version metadata to append to the version string
 )
 
 // Version holds the textual version string.