diff --git a/backend/src/langs.ts b/backend/src/langs.ts
index 28b9589..bf5ac92 100644
--- a/backend/src/langs.ts
+++ b/backend/src/langs.ts
@@ -401,6 +401,7 @@ main() ->
     main: "main.f",
     compile: "flang main.f -o main",
     run: "./main",
+    lsp: "fortls",
     template: `       program hello
           print *, "Hello, world!"
        end program hello
@@ -423,6 +424,7 @@ main() ->
     main: "main.go",
     compile: "go build main.go",
     run: "./main",
+    lsp: "gopls",
     template: `package main
 
 import "fmt"
diff --git a/scripts/docker-install-phase4.bash b/scripts/docker-install-phase4.bash
index 70e03ba..024ed34 100755
--- a/scripts/docker-install-phase4.bash
+++ b/scripts/docker-install-phase4.bash
@@ -34,6 +34,9 @@ npm install -g coffeescript
 # Elm
 npm install -g @kachkaev/run-elm
 
+# FORTRAN
+pip3 install fortran-language-server
+
 # Perl
 cpanm -n Devel::REPL
 
diff --git a/scripts/docker-install-phase5.bash b/scripts/docker-install-phase5.bash
index 76399e1..f31775a 100755
--- a/scripts/docker-install-phase5.bash
+++ b/scripts/docker-install-phase5.bash
@@ -40,6 +40,12 @@ gunzip binary-for-linux-64-bit.gz
 chmod +x binary-for-linux-64-bit
 mv binary-for-linux-64-bit /usr/bin/elm
 
+# Go
+export GO111MODULE=on
+export GOPATH=/tmp/go
+mv /tmp/go/bin/gopls /usr/bin/gopls
+rm -rf /tmp/go
+
 # Ink
 cd /tmp
 wget -nv https://github.com/thesephist/ink/releases/download/v0.1.7/ink-linux
@@ -74,6 +80,7 @@ wget -nv "${nupkg}"
 unzip -d /opt/mspyls Python-Language-Server-linux-x64.*.nupkg
 chmod +x /opt/mspyls/Microsoft.Python.LanguageServer
 ln -s /opt/mspyls/Microsoft.Python.LanguageServer /usr/bin/Microsoft.Python.LanguageServer
+rm Python-Language-Server-linux-x64.*.nupkg
 
 # SNOBOL
 wget -nv ftp://ftp.snobol4.org/snobol/old/snobol4-2.1.4.tar.gz