diff --git a/tools/singularity/centos7.def b/tools/singularity/centos7.def
index 8a3235b58f..795f97e7dc 100644
--- a/tools/singularity/centos7.def
+++ b/tools/singularity/centos7.def
@@ -36,7 +36,7 @@ From: centos:7
         # manually install Plumed
         mkdir plumed
         cd plumed
-        version=2.7.2
+        version=2.7.3
         curl -L -o plumed.tar.gz https://github.com/plumed/plumed2/releases/download/v${version}/plumed-src-${version}.tgz
         tar -xzf plumed.tar.gz
         cd plumed-${version}
diff --git a/tools/singularity/centos8.def b/tools/singularity/centos8.def
index e35f97f453..01ace16864 100644
--- a/tools/singularity/centos8.def
+++ b/tools/singularity/centos8.def
@@ -42,7 +42,7 @@ From: centos:8
         # manually install Plumed
         mkdir plumed
         cd plumed
-        version=2.7.2
+        version=2.7.3
         curl -L -o plumed.tar.gz https://github.com/plumed/plumed2/releases/download/v${version}/plumed-src-${version}.tgz
         tar -xzf plumed.tar.gz
         cd plumed-${version}
diff --git a/tools/singularity/fedora34_mingw.def b/tools/singularity/fedora34_mingw.def
index 40e6f72861..1c0ffaf730 100644
--- a/tools/singularity/fedora34_mingw.def
+++ b/tools/singularity/fedora34_mingw.def
@@ -49,7 +49,7 @@ From: fedora:34
         # manually install Plumed
         mkdir plumed
         cd plumed
-        version=2.7.1
+        version=2.7.3
         curl -L -o plumed.tar.gz https://github.com/plumed/plumed2/releases/download/v${version}/plumed-src-${version}.tgz
         tar -xzf plumed.tar.gz
         cd plumed-${version}
diff --git a/tools/singularity/rocky8.def b/tools/singularity/rocky8.def
index 0827b1d548..ba3c8e396f 100644
--- a/tools/singularity/rocky8.def
+++ b/tools/singularity/rocky8.def
@@ -42,7 +42,7 @@ From: rockylinux/rockylinux:8
         # manually install Plumed
         mkdir plumed
         cd plumed
-        version=2.7.2
+        version=2.7.3
         curl -L -o plumed.tar.gz https://github.com/plumed/plumed2/releases/download/v${version}/plumed-src-${version}.tgz
         tar -xzf plumed.tar.gz
         cd plumed-${version}
diff --git a/tools/singularity/ubuntu18.04.def b/tools/singularity/ubuntu18.04.def
index 35247d8e2a..a2ea16d013 100644
--- a/tools/singularity/ubuntu18.04.def
+++ b/tools/singularity/ubuntu18.04.def
@@ -105,7 +105,7 @@ From: ubuntu:18.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed
diff --git a/tools/singularity/ubuntu18.04_amd_rocm.def b/tools/singularity/ubuntu18.04_amd_rocm.def
index 407cda1250..5379e40715 100644
--- a/tools/singularity/ubuntu18.04_amd_rocm.def
+++ b/tools/singularity/ubuntu18.04_amd_rocm.def
@@ -129,7 +129,7 @@ From: ubuntu:18.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed
diff --git a/tools/singularity/ubuntu18.04_gpu.def b/tools/singularity/ubuntu18.04_gpu.def
index 9a1d37792e..829fbf86a0 100644
--- a/tools/singularity/ubuntu18.04_gpu.def
+++ b/tools/singularity/ubuntu18.04_gpu.def
@@ -165,7 +165,7 @@ From: ubuntu:18.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed
diff --git a/tools/singularity/ubuntu18.04_intel_opencl.def b/tools/singularity/ubuntu18.04_intel_opencl.def
index 95c744c67d..c61eb14bad 100644
--- a/tools/singularity/ubuntu18.04_intel_opencl.def
+++ b/tools/singularity/ubuntu18.04_intel_opencl.def
@@ -106,7 +106,7 @@ From: ubuntu:18.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed
diff --git a/tools/singularity/ubuntu18.04_nvidia.def b/tools/singularity/ubuntu18.04_nvidia.def
index 359e1d1c4d..79b8dac45c 100644
--- a/tools/singularity/ubuntu18.04_nvidia.def
+++ b/tools/singularity/ubuntu18.04_nvidia.def
@@ -105,7 +105,7 @@ From: nvidia/cuda:11.4.1-devel-ubuntu18.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed
diff --git a/tools/singularity/ubuntu20.04.def b/tools/singularity/ubuntu20.04.def
index f85d3ca614..c2a5aaf60e 100644
--- a/tools/singularity/ubuntu20.04.def
+++ b/tools/singularity/ubuntu20.04.def
@@ -100,7 +100,7 @@ From: ubuntu:20.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed
diff --git a/tools/singularity/ubuntu20.04_amd_rocm.def b/tools/singularity/ubuntu20.04_amd_rocm.def
index 2b4176f183..d8a181784d 100644
--- a/tools/singularity/ubuntu20.04_amd_rocm.def
+++ b/tools/singularity/ubuntu20.04_amd_rocm.def
@@ -126,7 +126,7 @@ From: ubuntu:20.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed
diff --git a/tools/singularity/ubuntu20.04_gpu.def b/tools/singularity/ubuntu20.04_gpu.def
index 3ea759078b..3576af93c4 100644
--- a/tools/singularity/ubuntu20.04_gpu.def
+++ b/tools/singularity/ubuntu20.04_gpu.def
@@ -162,7 +162,7 @@ From: ubuntu:20.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed
diff --git a/tools/singularity/ubuntu20.04_intel_opencl.def b/tools/singularity/ubuntu20.04_intel_opencl.def
index 7c83ecb5b1..4c799b9be2 100644
--- a/tools/singularity/ubuntu20.04_intel_opencl.def
+++ b/tools/singularity/ubuntu20.04_intel_opencl.def
@@ -99,7 +99,7 @@ From: ubuntu:20.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed
diff --git a/tools/singularity/ubuntu20.04_nvidia.def b/tools/singularity/ubuntu20.04_nvidia.def
index ddcbd34db9..5c93219563 100644
--- a/tools/singularity/ubuntu20.04_nvidia.def
+++ b/tools/singularity/ubuntu20.04_nvidia.def
@@ -102,7 +102,7 @@ From: nvidia/cuda:11.4.1-devel-ubuntu20.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed
diff --git a/tools/singularity/ubuntu20.04_oneapi.def b/tools/singularity/ubuntu20.04_oneapi.def
index 23a5e338e8..e5077fe184 100644
--- a/tools/singularity/ubuntu20.04_oneapi.def
+++ b/tools/singularity/ubuntu20.04_oneapi.def
@@ -139,7 +139,7 @@ From: ubuntu:20.04
     # Plumed
     ###########################################################################
 
-    export PLUMED_PKG_VERSION=2.7.2
+    export PLUMED_PKG_VERSION=2.7.3
 
     mkdir plumed
     cd plumed