diff --git a/src/oled_monitor/start.sh b/src/oled_monitor/start.sh
index d42b1e27..8a674f97 100755
--- a/src/oled_monitor/start.sh
+++ b/src/oled_monitor/start.sh
@@ -68,9 +68,9 @@ fi
 # Test for two known broken venv states
 if test -e venv; then
     GOOD_VENV=true
-    test -e venv/bin/activate && GOOD_VENV=false
-    pip list &> /dev/null
-    test $? -eq 0 && GOOD_VENV=false
+    ! test -e venv/bin/activate && GOOD_VENV=false
+    pip3 list &> /dev/null
+    test $? -eq 1 && GOOD_VENV=false
     if ! "$GOOD_VENV"; then
         echo "Deleting bad python venv"
         sudo rm -rf venv
@@ -84,20 +84,20 @@ if ! test -e venv; then
   echo "Activating venv"
   source venv/bin/activate
   echo "Installing requirements.txt"
-  pip install wheel
-  CFLAGS="$COMPILER_FLAGS" pip install -r requirements.txt
+  pip3 install wheel
+  CFLAGS="$COMPILER_FLAGS" pip3 install -r requirements.txt
   git rev-parse HEAD > current
 fi
 
 source venv/bin/activate
 
-# Detect if someone updates - we need to re-run pip install.
+# Detect if someone updates - we need to re-run pip3 install.
 if ! test -e current; then
   git rev-parse > current
 else
   if [ "$(cat current)" != "$(git rev-parse HEAD)" ]; then
       echo "New version detected, updating requirements.txt"
-      CFLAGS="$COMPILER_FLAGS" pip install -r requirements.txt
+      CFLAGS="$COMPILER_FLAGS" pip3 install -r requirements.txt
       git rev-parse HEAD > current
   fi
 fi
diff --git a/src/web/start.sh b/src/web/start.sh
index ed59776e..0fbe92ca 100755
--- a/src/web/start.sh
+++ b/src/web/start.sh
@@ -34,9 +34,9 @@ fi
 # Test for two known broken venv states
 if test -e venv; then
     GOOD_VENV=true
-    test -e venv/bin/activate && GOOD_VENV=false
-    pip list &> /dev/null
-    test $? -eq 0 && GOOD_VENV=false
+    ! test -e venv/bin/activate && GOOD_VENV=false
+    pip3 list &> /dev/null
+    test $? -eq 1 && GOOD_VENV=false
     if ! "$GOOD_VENV"; then
         echo "Deleting bad python venv"
         sudo rm -rf venv
@@ -50,20 +50,20 @@ if ! test -e venv; then
     echo "Activating venv"
     source venv/bin/activate
     echo "Installing requirements.txt"
-    pip install wheel
-    pip install -r requirements.txt
+    pip3 install wheel
+    pip3 install -r requirements.txt
     git rev-parse HEAD > current
 fi
 
 source venv/bin/activate
 
-# Detect if someone updates - we need to re-run pip install.
+# Detect if someone updates - we need to re-run pip3 install.
 if ! test -e current; then
     git rev-parse > current
 else
     if [ "$(cat current)" != "$(git rev-parse HEAD)" ]; then
         echo "New version detected, updating requirements.txt"
-        pip install -r requirements.txt
+        pip3 install -r requirements.txt
         git rev-parse HEAD > current
     fi
 fi