diff --git a/README.md b/README.md
index 90302a23..64740b50 100644
--- a/README.md
+++ b/README.md
@@ -170,7 +170,10 @@ The action supports both `GitHub-hosted` runners and `self-hosted` runners on th
     extensions: intl-67.1
 ```
 
-- These extensions have custom support - `cubrid`, `pdo_cubrid` and `gearman` on `Ubuntu`, and `blackfire`, `couchbase`, `ioncube`, `oci8`, `pdo_oci`, `phalcon3` and `phalcon4` on all supported OS.
+- These extensions have custom support:
+ - `cubrid`, `pdo_cubrid` and `gearman` on `Ubuntu`.
+ - `geos` on `Ubuntu` and `macOS`.
+ - `blackfire`, `couchbase`, `ioncube`, `oci8`, `pdo_oci`, `phalcon3` and `phalcon4` on all supported OS.
 
 - By default, extensions which cannot be added or removed gracefully leave an error message in the logs, the action is not interrupted. To change this behaviour you can set `fail-fast` flag to `true`. 
 
diff --git a/__tests__/extensions.test.ts b/__tests__/extensions.test.ts
index f1112ead..371f2f0f 100644
--- a/__tests__/extensions.test.ts
+++ b/__tests__/extensions.test.ts
@@ -112,6 +112,9 @@ describe('Extension tests', () => {
     linux = await extensions.addExtension('ioncube', '7.3', 'linux');
     expect(linux).toContain('add_ioncube');
 
+    linux = await extensions.addExtension('geos', '7.3', 'linux');
+    expect(linux).toContain('add_geos');
+
     linux = await extensions.addExtension('oci8, pdo_oci', '7.3', 'linux');
     expect(linux).toContain('add_oci oci8');
     expect(linux).toContain('add_oci pdo_oci');
@@ -164,6 +167,9 @@ describe('Extension tests', () => {
     darwin = await extensions.addExtension('ioncube', '7.3', 'darwin');
     expect(darwin).toContain('add_ioncube');
 
+    darwin = await extensions.addExtension('geos', '7.3', 'darwin');
+    expect(darwin).toContain('add_geos');
+
     darwin = await extensions.addExtension('oci8, pdo_oci', '7.3', 'darwin');
     expect(darwin).toContain('add_oci oci8');
     expect(darwin).toContain('add_oci pdo_oci');
diff --git a/dist/index.js b/dist/index.js
index 0eae1200..494554a1 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -2875,11 +2875,12 @@ async function addExtensionDarwin(extension_csv, version) {
             // match 5.3blackfire-(semver)...5.6blackfire-(semver), 7.0blackfire-(semver)...7.4blackfire-(semver)
             // match pdo_oci and oci8
             // match 5.3ioncube...7.4ioncube, 7.0ioncube...7.4ioncube
+            // match 5.3geos...7.4geos, 7.0geos...7.4geos
             // match 7.0phalcon3...7.3phalcon3 and 7.2phalcon4...7.4phalcon4
             // match 5.6couchbase...7.4couchbase
             case /^(5\.[3-6]|7\.[0-4])blackfire(-\d+\.\d+\.\d+)?$/.test(version_extension):
             case /^pdo_oci$|^oci8$/.test(extension):
-            case /^5\.[3-6]ioncube$|^7\.[0-4]ioncube$/.test(version_extension):
+            case /^(5\.[3-6]|7\.[0-4])(ioncube|geos)$/.test(version_extension):
             case /^7\.[0-3]phalcon3$|^7\.[2-4]phalcon4$/.test(version_extension):
             case /^5\.6couchbase$|^7\.[0-4]couchbase$/.test(version_extension):
                 add_script += await utils.customPackage(ext_name, 'ext', extension, 'darwin');
@@ -3020,13 +3021,14 @@ async function addExtensionLinux(extension_csv, version) {
             // match 5.3pdo_cubrid...7.2php_cubrid, 5.3cubrid...7.4cubrid
             // match pdo_oci and oci8
             // match 5.3ioncube...7.4ioncube, 7.0ioncube...7.4ioncube
+            // match 5.3geos...7.4geos, 7.0geos...7.4geos
             // match 7.0phalcon3...7.3phalcon3 and 7.2phalcon4...7.4phalcon4
             // match 5.6gearman...7.4gearman, 5.6couchbase...7.4couchbase
             case /^(5\.[3-6]|7\.[0-4])blackfire(-\d+\.\d+\.\d+)?$/.test(version_extension):
             case /^((5\.[3-6])|(7\.[0-2]))pdo_cubrid$|^((5\.[3-6])|(7\.[0-4]))cubrid$/.test(version_extension):
             case /^pdo_oci$|^oci8$/.test(extension):
             case /^5\.6intl-[\d]+\.[\d]+$|^7\.[0-4]intl-[\d]+\.[\d]+$/.test(version_extension):
-            case /^5\.[3-6]ioncube$|^7\.[0-4]ioncube$/.test(version_extension):
+            case /^(5\.[3-6]|7\.[0-4])(ioncube|geos)$/.test(version_extension):
             case /^7\.[0-3]phalcon3$|^7\.[2-4]phalcon4$/.test(version_extension):
             case /^((5\.6)|(7\.[0-4]))(gearman|couchbase)$/.test(version_extension):
                 add_script += await utils.customPackage(ext_name, 'ext', extension, 'linux');
diff --git a/src/extensions.ts b/src/extensions.ts
index 404f1219..b124a707 100644
--- a/src/extensions.ts
+++ b/src/extensions.ts
@@ -26,13 +26,14 @@ export async function addExtensionDarwin(
       // match 5.3blackfire-(semver)...5.6blackfire-(semver), 7.0blackfire-(semver)...7.4blackfire-(semver)
       // match pdo_oci and oci8
       // match 5.3ioncube...7.4ioncube, 7.0ioncube...7.4ioncube
+      // match 5.3geos...7.4geos, 7.0geos...7.4geos
       // match 7.0phalcon3...7.3phalcon3 and 7.2phalcon4...7.4phalcon4
       // match 5.6couchbase...7.4couchbase
       case /^(5\.[3-6]|7\.[0-4])blackfire(-\d+\.\d+\.\d+)?$/.test(
         version_extension
       ):
       case /^pdo_oci$|^oci8$/.test(extension):
-      case /^5\.[3-6]ioncube$|^7\.[0-4]ioncube$/.test(version_extension):
+      case /^(5\.[3-6]|7\.[0-4])(ioncube|geos)$/.test(version_extension):
       case /^7\.[0-3]phalcon3$|^7\.[2-4]phalcon4$/.test(version_extension):
       case /^5\.6couchbase$|^7\.[0-4]couchbase$/.test(version_extension):
         add_script += await utils.customPackage(
@@ -227,6 +228,7 @@ export async function addExtensionLinux(
       // match 5.3pdo_cubrid...7.2php_cubrid, 5.3cubrid...7.4cubrid
       // match pdo_oci and oci8
       // match 5.3ioncube...7.4ioncube, 7.0ioncube...7.4ioncube
+      // match 5.3geos...7.4geos, 7.0geos...7.4geos
       // match 7.0phalcon3...7.3phalcon3 and 7.2phalcon4...7.4phalcon4
       // match 5.6gearman...7.4gearman, 5.6couchbase...7.4couchbase
       case /^(5\.[3-6]|7\.[0-4])blackfire(-\d+\.\d+\.\d+)?$/.test(
@@ -239,7 +241,7 @@ export async function addExtensionLinux(
       case /^5\.6intl-[\d]+\.[\d]+$|^7\.[0-4]intl-[\d]+\.[\d]+$/.test(
         version_extension
       ):
-      case /^5\.[3-6]ioncube$|^7\.[0-4]ioncube$/.test(version_extension):
+      case /^(5\.[3-6]|7\.[0-4])(ioncube|geos)$/.test(version_extension):
       case /^7\.[0-3]phalcon3$|^7\.[2-4]phalcon4$/.test(version_extension):
       case /^((5\.6)|(7\.[0-4]))(gearman|couchbase)$/.test(version_extension):
         add_script += await utils.customPackage(
diff --git a/src/scripts/ext/geos.sh b/src/scripts/ext/geos.sh
new file mode 100644
index 00000000..36db800f
--- /dev/null
+++ b/src/scripts/ext/geos.sh
@@ -0,0 +1,51 @@
+# Helper function install geos library and headers
+add_geos_libs() {
+  if [ "$(uname -s)" = "Darwin" ]; then
+    brew install geos
+  else
+    sudo apt-get install libgeos-dev
+    if [ "${runner:?}" = "self-hosted" ]; then
+      ${apt_install:?} --no-upgrade --no-install-recommends autoconf automake gcc g++
+    fi
+  fi
+}
+
+# Patch geos for PHP 7
+patch_geos() {
+  if [ "$(php -r "echo PHP_VERSION_ID;")" -ge 70000 ]; then
+    sed -i~ -e "s/, ce->name/, ZSTR_VAL(ce->name)/; s/ulong /zend_ulong /" /tmp/php-geos-"$geos_tag"/geos.c
+  fi
+}
+
+# Get geos source
+get_geos() {
+  curl -o /tmp/geos.tar.gz -sL https://github.com/libgeos/php-geos/archive/"$geos_tag".tar.gz
+  tar -xzf /tmp/geos.tar.gz -C /tmp
+  patch_geos
+}
+
+# Helper function to compile and install geos
+add_geos_helper() {
+  get_geos
+  (
+    cd /tmp/php-geos-"$geos_tag" || exit
+    phpize
+    ./configure --enable-geos --with-geos-config="$(command -v geos-config)"
+    sudo make -j"$(nproc)"
+    sudo make install
+    enable_extension geos extension
+  )
+}
+
+# Function to add geos
+add_geos() {
+  geos_tag='1.0.0'
+  add_geos_libs >/dev/null 2>&1
+  enable_extension "geos" "extension"
+  if check_extension "geos"; then
+    add_log "${tick:?}" "geos" "Enabled"
+  else
+    add_geos_helper >/dev/null 2>&1
+    add_extension_log "geos" "Installed and enabled"
+  fi
+}